Default
Trigger a dropdown menu using a click or focus event. By default, the menu is positioned below and left-aligned with the target element.
<div class="comet-dropdown">
    <button class="comet-button comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger comet-button--icon-with-text" data-comet-popover='dropdown-menu-example-1' haspopup='true'>
        <span class="comet-button__inner">
            <span class="comet-button__text">
                Click Me
            </span>
            <svg class="comet-button__icon comet-button__icon--right" aria-hidden="true" focusable="false">
                <use xlink:href="/comet/comet_assets/comet.svg#triangle-down"></use>
            </svg>
        </span>
    </button>
    <div class="comet-dropdown-menu comet-popover comet-popover--bottom-left-aligned" id="dropdown-menu-example-1" data-comet-popover-align="left">
        <div class="comet-list-group comet-dropdown-menu__list-group comet-list-group--no-hairlines">
            <ul class="comet-list-group__list">
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Action One
                        </span>
                    </a>
                </li>
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Action Two
                        </span>
                    </a>
                </li>
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Action Three
                        </span>
                    </a>
                </li>
            </ul>
        </div>
    </div>
</div>
                
        <div class="comet-dropdown">
    {{ comet.button_icon(
                text="Click Me",
                class="comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger",
                icon_name="triangle-down",
                position="right",
                attrs="data-comet-popover='dropdown-menu-example-1' haspopup='true'")}}
    {{ comet.dropdown_menu(
                id="dropdown-menu-example-1",
                menu_items=[
                    {
                        label: "Action One",
                        href: "#"
                    },
                    {
                        label: "Action Two",
                        href: "#"
                    },
                    {
                        label: "Action Three",
                        href: "#"
                    }
                ]) }}
</div>
                
Macro params reference
        Positioned
Position a dropdown using one of four modifier classes:
comet-popover--bottom-left-alignedcomet-popover--bottom-right-alignedcomet-popover--top-left-alignedcomet-popover--top-right-aligned
<div class="comet-dropdown">
    <button class="comet-button comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger comet-button--icon-with-text" data-comet-popover='positioning-example-1' haspopup='true'>
        <span class="comet-button__inner">
            <span class="comet-button__text">
                Left
            </span>
            <svg class="comet-button__icon comet-button__icon--right" aria-hidden="true" focusable="false">
                <use xlink:href="/comet/comet_assets/comet.svg#triangle-down"></use>
            </svg>
        </span>
    </button>
    <div class="comet-dropdown-menu comet-popover comet-popover--bottom-left-aligned" id="positioning-example-1" data-comet-popover-align="left">
        <div class="comet-list-group comet-dropdown-menu__list-group comet-list-group--no-hairlines">
            <ul class="comet-list-group__list">
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Position Action One
                        </span>
                    </a>
                </li>
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Position Action Two
                        </span>
                    </a>
                </li>
            </ul>
        </div>
    </div>
</div>
<div class="comet-dropdown">
    <button class="comet-button comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger comet-button--icon-with-text" data-comet-popover='positioning-example-2' haspopup='true'>
        <span class="comet-button__inner">
            <span class="comet-button__text">
                Right
            </span>
            <svg class="comet-button__icon comet-button__icon--right" aria-hidden="true" focusable="false">
                <use xlink:href="/comet/comet_assets/comet.svg#triangle-down"></use>
            </svg>
        </span>
    </button>
    <div class="comet-dropdown-menu comet-popover comet-popover--bottom-right-aligned" id="positioning-example-2" data-comet-popover-align="right">
        <div class="comet-list-group comet-dropdown-menu__list-group comet-list-group--no-hairlines">
            <ul class="comet-list-group__list">
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Position Action One
                        </span>
                    </a>
                </li>
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Position Action Two
                        </span>
                    </a>
                </li>
            </ul>
        </div>
    </div>
</div>
<div class="comet-dropdown">
    <button class="comet-button comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger comet-button--icon-with-text" data-comet-popover='positioning-example-3' haspopup='true'>
        <span class="comet-button__inner">
            <span class="comet-button__text">
                Top Left
            </span>
            <svg class="comet-button__icon comet-button__icon--right" aria-hidden="true" focusable="false">
                <use xlink:href="/comet/comet_assets/comet.svg#triangle-up"></use>
            </svg>
        </span>
    </button>
    <div class="comet-dropdown-menu comet-popover comet-popover--top-left-aligned" id="positioning-example-3" data-comet-popover-align="left">
        <div class="comet-list-group comet-dropdown-menu__list-group comet-list-group--no-hairlines">
            <ul class="comet-list-group__list">
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Position Action One
                        </span>
                    </a>
                </li>
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Position Action Two
                        </span>
                    </a>
                </li>
            </ul>
        </div>
    </div>
</div>
<div class="comet-dropdown">
    <button class="comet-button comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger comet-button--icon-with-text" data-comet-popover='positioning-example-4' haspopup='true'>
        <span class="comet-button__inner">
            <span class="comet-button__text">
                Top right
            </span>
            <svg class="comet-button__icon comet-button__icon--right" aria-hidden="true" focusable="false">
                <use xlink:href="/comet/comet_assets/comet.svg#triangle-up"></use>
            </svg>
        </span>
    </button>
    <div class="comet-dropdown-menu comet-popover comet-popover--top-right-aligned" id="positioning-example-4" data-comet-popover-align="right">
        <div class="comet-list-group comet-dropdown-menu__list-group comet-list-group--no-hairlines">
            <ul class="comet-list-group__list">
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Position Action One
                        </span>
                    </a>
                </li>
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Position Action Two
                        </span>
                    </a>
                </li>
            </ul>
        </div>
    </div>
</div>
                
        {% set menu_items_for_all = [{ label: "Position Action One", href: "#" }, { label: "Position Action Two", href: "#" }] %}
<div class="comet-dropdown">
    {{ comet.button_icon(
                text="Left",
                class="comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger",
                icon_name="triangle-down",
                position="right",
                attrs="data-comet-popover='positioning-example-1' haspopup='true'")}}
    {{ comet.dropdown_menu(
                id="positioning-example-1",
                menu_items=menu_items_for_all,
                menu_alignment="left",
                menu_placement="bottom") }}
</div>
<div class="comet-dropdown">
    {{ comet.button_icon(
                text="Right",
                class="comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger",
                icon_name="triangle-down",
                position="right",
                attrs="data-comet-popover='positioning-example-2' haspopup='true'")}}
    {{ comet.dropdown_menu(
                id="positioning-example-2",
                menu_items=menu_items_for_all,
                menu_alignment="right",
                menu_placement="bottom") }}
</div>
<div class="comet-dropdown">
    {{ comet.button_icon(
                text="Top Left",
                class="comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger",
                icon_name="triangle-up",
                position="right",
                attrs="data-comet-popover='positioning-example-3' haspopup='true'")}}
    {{ comet.dropdown_menu(
                id="positioning-example-3",
                menu_items=menu_items_for_all,
                menu_alignment="left",
                menu_placement="top") }}
</div>
<div class="comet-dropdown">
    {{ comet.button_icon(
                text="Top right",
                class="comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger",
                icon_name="triangle-up",
                position="right",
                attrs="data-comet-popover='positioning-example-4' haspopup='true'")}}
    {{ comet.dropdown_menu(
                id="positioning-example-4",
                menu_items=menu_items_for_all,
                menu_alignment="right",
                menu_placement="top") }}
</div>
                
Macro params reference
        Trigger Elements
Use any element to trigger a dropdown.
<div class="comet-dropdown">
    <button class="comet-button comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger comet-button--icon-with-text" data-comet-popover='trigger-example-1' haspopup='true'>
        <span class="comet-button__inner">
            <span class="comet-button__text">
                Click Me
            </span>
            <svg class="comet-button__icon comet-button__icon--right" aria-hidden="true" focusable="false">
                <use xlink:href="/comet/comet_assets/comet.svg#triangle-down"></use>
            </svg>
        </span>
    </button>
    <div class="comet-dropdown-menu comet-popover comet-popover--bottom-left-aligned" id="trigger-example-1" data-comet-popover-align="left">
        <div class="comet-list-group comet-dropdown-menu__list-group comet-list-group--no-hairlines">
            <ul class="comet-list-group__list">
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Menu Item 1
                        </span>
                    </a>
                </li>
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Menu Item 2
                        </span>
                    </a>
                </li>
            </ul>
        </div>
    </div>
</div>
<div class="comet-dropdown">
    <button class="comet-button comet-button--ghost comet-dropdown-trigger js-comet-dropdown-trigger comet-button--icon-with-text" data-comet-popover='trigger-example-2' haspopup='true'>
        <span class="comet-button__inner">
            <svg class="comet-button__icon comet-button__icon--left" aria-hidden="true" focusable="false">
                <use xlink:href="/comet/comet_assets/comet.svg#triangle-down"></use>
            </svg>
            <span class="comet-button__text">
                Click Me
            </span>
        </span>
    </button>
    <div class="comet-dropdown-menu comet-popover comet-popover--bottom-left-aligned" id="trigger-example-2" data-comet-popover-align="left">
        <div class="comet-list-group comet-dropdown-menu__list-group comet-list-group--no-hairlines">
            <ul class="comet-list-group__list">
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Menu Item 1
                        </span>
                    </a>
                </li>
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Menu Item 2
                        </span>
                    </a>
                </li>
            </ul>
        </div>
    </div>
</div>
<div class="comet-dropdown">
    <button class="comet-button comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger comet-button--icon-only" data-comet-popover='trigger-example-3' haspopup='true'>
        <svg class="comet-button__icon comet-button__icon--left" aria-hidden="true" focusable="false">
            <use xlink:href="/comet/comet_assets/comet.svg#star"></use>
        </svg>
        <span class="comet-screenreader-only"></span>
    </button>
    <div class="comet-dropdown-menu comet-popover comet-popover--bottom-left-aligned" id="trigger-example-3" data-comet-popover-align="left">
        <div class="comet-list-group comet-dropdown-menu__list-group comet-list-group--no-hairlines">
            <ul class="comet-list-group__list">
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Menu Item 1
                        </span>
                    </a>
                </li>
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Menu Item 2
                        </span>
                    </a>
                </li>
            </ul>
        </div>
    </div>
</div>
<div class="comet-dropdown">
    <a href="#" class="comet-dropdown-trigger js-comet-dropdown-trigger" data-comet-popover="trigger-example-4">Click Me</a>
    <div class="comet-dropdown-menu comet-popover comet-popover--bottom-left-aligned" id="trigger-example-4" data-comet-popover-align="left">
        <div class="comet-list-group comet-dropdown-menu__list-group comet-list-group--no-hairlines">
            <ul class="comet-list-group__list">
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Menu Item 1
                        </span>
                    </a>
                </li>
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Menu Item 2
                        </span>
                    </a>
                </li>
            </ul>
        </div>
    </div>
</div>
                
        <div class="comet-dropdown">
    {{ comet.button_icon(
                text="Click Me",
                class="comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger",
                icon_name="triangle-down",
                position="right",
                attrs="data-comet-popover='trigger-example-1' haspopup='true'")}}
    {{ comet.dropdown_menu(
                id="trigger-example-1") }}
</div>
<div class="comet-dropdown">
    {{ comet.button_icon(
                text="Click Me",
                class="comet-button--ghost comet-dropdown-trigger js-comet-dropdown-trigger",
                icon_name="triangle-down",
                attrs="data-comet-popover='trigger-example-2' haspopup='true'")}}
    {{ comet.dropdown_menu(
                id="trigger-example-2") }}
</div>
<div class="comet-dropdown">
    {{ comet.button_icon(
                class="comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger",
                icon_name="star",
                attrs="data-comet-popover='trigger-example-3' haspopup='true'")}}
    {{ comet.dropdown_menu(
                id="trigger-example-3") }}
</div>
<div class="comet-dropdown">
    <a href="#" class="comet-dropdown-trigger js-comet-dropdown-trigger" data-comet-popover="trigger-example-4">Click Me</a>
    {{ comet.dropdown_menu(
                id="trigger-example-4") }}
</div>
                
Macro params reference
        Style Modifiers
Horizontal Separator
Use a comet-dropdown-menu__item--separator-after modifier class on the last item in a group to separate it from a subsequent group.
<div class="comet-dropdown">
    <button class="comet-button comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger comet-button--icon-with-text" data-comet-popover='separator-example' haspopup='true'>
        <span class="comet-button__inner">
            <span class="comet-button__text">
                Horizontal Separator
            </span>
            <svg class="comet-button__icon comet-button__icon--right" aria-hidden="true" focusable="false">
                <use xlink:href="/comet/comet_assets/comet.svg#triangle-down"></use>
            </svg>
        </span>
    </button>
    <div class="comet-dropdown-menu comet-popover comet-popover--bottom-left-aligned" id="separator-example" data-comet-popover-align="left">
        <div class="comet-list-group comet-dropdown-menu__list-group comet-list-group--no-hairlines">
            <ul class="comet-list-group__list">
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Grouped Action One
                        </span>
                    </a>
                </li>
                <li class="comet-list-group__row comet-dropdown-menu__item--separator-after">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Grouped Action Two
                        </span>
                    </a>
                </li>
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Separate Action
                        </span>
                    </a>
                </li>
            </ul>
        </div>
    </div>
</div>
                
        <div class="comet-dropdown">
    {{ comet.button_icon(
            text="Horizontal Separator",
            class="comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger",
            icon_name="triangle-down",
            position="right",
            attrs="data-comet-popover='separator-example' haspopup='true'")}}
    {{ comet.dropdown_menu(id="separator-example", menu_items=[
            {
                label: "Grouped Action One",
                href: "#"
            },
            {
                label: "Grouped Action Two",
                href: "#",
                class: "comet-dropdown-menu__item--separator-after"
            },
            {
                label: "Separate Action",
                href: "#"
            }
        ]) }}
</div>
                
Macro params reference
        List Group Options
Alter dropdown menu styles by modifying the internal List Group component. Those options include but are not limited to:
Icon + Label Pairs
<div class="comet-dropdown">
    <button class="comet-button comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger comet-button--icon-with-text" data-comet-popover='icons-with-labels' haspopup='true'>
        <span class="comet-button__inner">
            <span class="comet-button__text">
                Icons With Labels
            </span>
            <svg class="comet-button__icon comet-button__icon--right" aria-hidden="true" focusable="false">
                <use xlink:href="/comet/comet_assets/comet.svg#triangle-down"></use>
            </svg>
        </span>
    </button>
    <div class="comet-dropdown-menu comet-popover comet-popover--bottom-left-aligned" id="icons-with-labels" data-comet-popover-align="left">
        <div class="comet-list-group comet-dropdown-menu__list-group comet-list-group--no-hairlines">
            <ul class="comet-list-group__list">
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <svg class="comet-list-group__row-type-icon" aria-hidden="true" focusable="false">
                            <use xlink:href="/comet/comet_assets/comet.svg#asset-audio-cd"></use>
                        </svg>
                        <span class="comet-list-group__row-label">
                            Have a Listen
                        </span>
                    </a>
                </li>
                <li class="comet-list-group__row comet-dropdown-menu__item--separator-after">
                    <a class="comet-list-group__row-anchor" href="#">
                        <svg class="comet-list-group__row-type-icon" aria-hidden="true" focusable="false">
                            <use xlink:href="/comet/comet_assets/comet.svg#asset-book"></use>
                        </svg>
                        <span class="comet-list-group__row-label">
                            Read a book
                        </span>
                    </a>
                </li>
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <svg class="comet-list-group__row-type-icon" aria-hidden="true" focusable="false">
                            <use xlink:href="/comet/comet_assets/comet.svg#asset-clip-art"></use>
                        </svg>
                        <span class="comet-list-group__row-label">
                            Grow a plant
                        </span>
                    </a>
                </li>
            </ul>
        </div>
    </div>
</div>
                
        <div class="comet-dropdown">
    {{ comet.button_icon(
        text="Icons With Labels",
        class="comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger",
        icon_name="triangle-down",
        position="right",
        attrs="data-comet-popover='icons-with-labels' haspopup='true'")}}
    {{ comet.dropdown_menu(id="icons-with-labels", menu_items=[
            {
                type_icon: "asset-audio-cd",
                label: "Have a Listen",
                href: "#"
            },
            {
                type_icon: "asset-book",
                label: "Read a book",
                href: "#",
                class: "comet-dropdown-menu__item--separator-after"
            },
            {
                type_icon: "asset-clip-art",
                label: "Grow a plant",
                href: "#"
            }
        ]) }}
</div>
                
Macro params reference
        Dark Menu
Use the dark menu option only when additional contrast is needed that the default white menu does not offer.
<div class="comet-dropdown">
    <button class="comet-button comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger comet-button--icon-with-text" data-comet-popover='comet-dropdown-menu-dark' haspopup='true'>
        <span class="comet-button__inner">
            <span class="comet-button__text">
                Dark Menu
            </span>
            <svg class="comet-button__icon comet-button__icon--right" aria-hidden="true" focusable="false">
                <use xlink:href="/comet/comet_assets/comet.svg#triangle-down"></use>
            </svg>
        </span>
    </button>
    <div class="comet-dropdown-menu comet-popover comet-popover--bottom-left-aligned" id="comet-dropdown-menu-dark" data-comet-popover-align="left">
        <div class="comet-list-group comet-theme--dark-background comet-dropdown-menu__list-group comet-list-group--no-hairlines">
            <ul class="comet-list-group__list">
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Grouped Action One
                        </span>
                    </a>
                </li>
                <li class="comet-list-group__row comet-dropdown-menu__item--separator-after">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Grouped Action Two
                        </span>
                    </a>
                </li>
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Separate Action
                        </span>
                    </a>
                </li>
            </ul>
        </div>
    </div>
</div>
                
        <div class="comet-dropdown">
    {{ comet.button_icon(
        text="Dark Menu",
        class="comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger",
        icon_name="triangle-down",
        position="right",
        attrs="data-comet-popover='comet-dropdown-menu-dark' haspopup='true'")}}
    {{ comet.dropdown_menu(id="comet-dropdown-menu-dark", list_group_class="comet-theme--dark-background", menu_items=[
            {
                label: "Grouped Action One",
                href: "#"
            },
            {
                label: "Grouped Action Two",
                href: "#",
                class: "comet-dropdown-menu__item--separator-after"
            },
            {
                label: "Separate Action",
                href: "#"
            }
        ]) }}
</div>
                
Macro params reference
        Subheaders
Use a List Group subheader when labeling groups of options. Never use larger header variations within a dropdown menu.
<div class="comet-dropdown">
    <button class="comet-button comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger comet-button--icon-with-text" data-comet-popover='subheading-example' haspopup='true'>
        <span class="comet-button__inner">
            <span class="comet-button__text">
                Horizontal Separator
            </span>
            <svg class="comet-button__icon comet-button__icon--right" aria-hidden="true" focusable="false">
                <use xlink:href="/comet/comet_assets/comet.svg#triangle-down"></use>
            </svg>
        </span>
    </button>
    <div class="comet-dropdown-menu comet-popover comet-popover--bottom-left-aligned" id="subheading-example" data-comet-popover-align="left">
        <div class="comet-list-group comet-dropdown-menu__list-group comet-list-group--no-hairlines">
            <ul class="comet-list-group__list">
                <li class="comet-list-group__subhead-row">
                    Account
                </li>
                <li class="comet-list-group__row comet-dropdown-menu__item--separator-after">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Edit Profile
                        </span>
                    </a>
                </li>
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Sign Out
                        </span>
                    </a>
                </li>
            </ul>
        </div>
    </div>
</div>
                
        <div class="comet-dropdown">
    {{ comet.button_icon(
            text="Horizontal Separator",
            class="comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger",
            icon_name="triangle-down",
            position="right",
            attrs="data-comet-popover='subheading-example' haspopup='true'")}}
    {{ comet.dropdown_menu(id="subheading-example", menu_items=[
            {
                label: "Account",
                subheader: true
            },
            {
                label: "Edit Profile",
                href: "#",
                class: "comet-dropdown-menu__item--separator-after"
            },
            {
                label: "Sign Out",
                href: "#"
            }
        ]) }}
</div>
                
Macro params reference
        Selected List Option
<div class="comet-dropdown">
    <button class="comet-button comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger comet-button--icon-with-text" data-comet-popover='selected-option-menu' haspopup='true'>
        <span class="comet-button__inner">
            <span class="comet-button__text">
                Selected Option
            </span>
            <svg class="comet-button__icon comet-button__icon--right" aria-hidden="true" focusable="false">
                <use xlink:href="/comet/comet_assets/comet.svg#triangle-down"></use>
            </svg>
        </span>
    </button>
    <div class="comet-dropdown-menu comet-popover comet-popover--bottom-left-aligned" id="selected-option-menu" data-comet-popover-align="left">
        <div class="comet-list-group comet-dropdown-menu__list-group comet-list-group--no-hairlines">
            <ul class="comet-list-group__list">
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Action One
                        </span>
                    </a>
                </li>
                <li class="comet-list-group__row comet-list-group__row--selected">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Selected Item
                        </span>
                    </a>
                </li>
                <li class="comet-list-group__row">
                    <a class="comet-list-group__row-anchor" href="#">
                        <span class="comet-list-group__row-label">
                            Separate Action
                        </span>
                    </a>
                </li>
            </ul>
        </div>
    </div>
</div>
                
        <div class="comet-dropdown">
    {{ comet.button_icon(
            text="Selected Option",
            class="comet-button--primary comet-dropdown-trigger js-comet-dropdown-trigger",
            icon_name="triangle-down",
            position="right",
            attrs="data-comet-popover='selected-option-menu' haspopup='true'")}}
    {{ comet.dropdown_menu(id="selected-option-menu", menu_items=[
        {
            label: "Action One",
            href: "#"
        },
        {
            label: "Selected Item",
            href: "#",
            class: "comet-list-group__row--selected"
        },
        {
            label: "Separate Action",
            href: "#"
        }
    ]) }}
</div>
                
Macro params reference
        Guidelines
- Dropdown Menus depend on Popover javascript to function properly.
 - Dropdown triggers should have the 
haspopup=trueproperty for assistive technology functionality. - When triggered the Dropdown should toggle the 
aria-expandedproperty betweenexpandedandcollapsed. 
Use When
- Displaying multiple related actions with a common parent context, such as an account menu with “Edit Profile” and “Sign Out” options.
 
Don't Use When
- Collapsing many navigation links in a tight space. Instead, use a different pattern.
 
Class Reference
| Class | Applies to | Outcome | 
|---|---|---|
| 
                         
  | 
                
                    
                        
                    
                    
                         
  | 
                
                    
                        
                    
                    
                         Adds a 1px border below the menu item  | 
                
                
                
                
            
| 
                         
  | 
                
                    
                        
                    
                    
                         
  | 
                
                    
                        
                    
                    
                         Displays the menu above the target instead of below  | 
                
                
                
                
            
Macro Reference
| Parameter | Values | Description | 
|---|---|---|
| 
                         
  | 
                
                    
                        
                    
                    
                         false, string  | 
                
                    
                        
                    
                    
                         Sets the id attribute of   | 
                
                
                
                
            
| 
                         
  | 
                
                    
                        
                    
                    
                         false, string  | 
                
                    
                        
                    
                    
                         Adds a class or space separated list of classes to   | 
                
                
                
                
            
| 
                         
  | 
                
                    
                        
                    
                    
                         false, string  | 
                
                    
                        
                    
                    
                         Adds a class to the internal List Group component  | 
                
                
                
                
            
| 
                         
  | 
                
                    
                        
                    
                    
                         left or right  | 
                
                    
                        
                    
                    
                         Aligns the menu to the left (default) or right of the triggering element.  | 
                
                
                
                
            
| 
                         
  | 
                
                    
                        
                    
                    
                         bottom or top  | 
                
                    
                        
                    
                    
                         Places the menu below (default) or above the triggering element.  | 
                
                
                
                
            
| 
                         
  | 
                
                    
                        
                    
                    
                         Array of actions (see List Group Rows Documentation)  | 
                
                    
                        
                    
                    
                         An array of objects containing label and href keys that is passed to the internal List Group component used to generate the dropdown menu items.  |