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Dropdown

An interactive dropdown menu for discoverable content

The dropdown component is a container for a dropdown button and a dropdown menu.

  • dropdown the main container
    • dropdown-trigger the container for a button
    • dropdown-menu the toggable menu, hidden by default
      • dropdown-content the dropdown box, with a white background and a shadow
        • dropdown-item each single item of the dropdown, which can either be a a or a div
        • dropdown-divider a horizontal line to separate dropdown items

HTML

<div class="dropdown is-active">
  <div class="dropdown-trigger">
    <button class="button" aria-haspopup="true" aria-controls="dropdown-menu">
      <span>Dropdown button</span>
      <span class="icon is-small">
        <i class="fas fa-angle-down" aria-hidden="true"></i>
      </span>
    </button>
  </div>
  <div class="dropdown-menu" id="dropdown-menu" role="menu">
    <div class="dropdown-content">
      <a href="#" class="dropdown-item">
        Dropdown item
      </a>
      <a class="dropdown-item">
        Other dropdown item
      </a>
      <a href="#" class="dropdown-item is-active">
        Active dropdown item
      </a>
      <a href="#" class="dropdown-item">
        Other dropdown item
      </a>
      <hr class="dropdown-divider">
      <a href="#" class="dropdown-item">
        With a divider
      </a>
    </div>
  </div>
</div>

While the dropdown-item can be used as an anchor link <a>, you can also use a <div> and insert almost any type of content.

Example

HTML

<div class="dropdown is-active">
  <div class="dropdown-trigger">
    <button class="button" aria-haspopup="true" aria-controls="dropdown-menu2">
      <span>Content</span>
      <span class="icon is-small">
        <i class="fas fa-angle-down" aria-hidden="true"></i>
      </span>
    </button>
  </div>
  <div class="dropdown-menu" id="dropdown-menu2" role="menu">
    <div class="dropdown-content">
      <div class="dropdown-item">
        <p>You can insert <strong>any type of content</strong> within the dropdown menu.</p>
      </div>
      <hr class="dropdown-divider">
      <div class="dropdown-item">
        <p>You simply need to use a <code>&lt;div&gt;</code> instead.</p>
      </div>
      <hr class="dropdown-divider">
      <a href="#" class="dropdown-item">
        This is a link
      </a>
    </div>
  </div>
</div>

Hoverable or Toggable #

The dropdown component has 2 additional modifiers

  • is-hoverable: the dropdown will show up when hovering the dropdown-trigger
  • is-active: the dropdown will show up all the time

While the CSS :hover implementation works perfectly, the is-active class is available for users who want to control the display of the dropdown with JavaScript.

HTML

<div class="dropdown">
  <div class="dropdown-trigger">
    <button class="button" aria-haspopup="true" aria-controls="dropdown-menu3">
      <span>Click me</span>
      <span class="icon is-small">
        <i class="fas fa-angle-down" aria-hidden="true"></i>
      </span>
    </button>
  </div>
  <div class="dropdown-menu" id="dropdown-menu3" role="menu">
    <div class="dropdown-content">
      <a href="#" class="dropdown-item">
        Overview
      </a>
      <a href="#" class="dropdown-item">
        Modifiers
      </a>
      <a href="#" class="dropdown-item">
        Grid
      </a>
      <a href="#" class="dropdown-item">
        Form
      </a>
      <a href="#" class="dropdown-item">
        Elements
      </a>
      <a href="#" class="dropdown-item">
        Components
      </a>
      <a href="#" class="dropdown-item">
        Layout
      </a>
      <hr class="dropdown-divider">
      <a href="#" class="dropdown-item">
        More
      </a>
    </div>
  </div>
</div>

Example

HTML

<div class="dropdown is-hoverable">
  <div class="dropdown-trigger">
    <button class="button" aria-haspopup="true" aria-controls="dropdown-menu4">
      <span>Hover me</span>
      <span class="icon is-small">
        <i class="fas fa-angle-down" aria-hidden="true"></i>
      </span>
    </button>
  </div>
  <div class="dropdown-menu" id="dropdown-menu4" role="menu">
    <div class="dropdown-content">
      <div class="dropdown-item">
        <p>You can insert <strong>any type of content</strong> within the dropdown menu.</p>
      </div>
    </div>
  </div>
</div>

Right aligned #

You can add the is-right modifier to have a right-aligned dropdown.

Example

HTML

<div class="dropdown is-active">
  <div class="dropdown-trigger">
    <button class="button" aria-haspopup="true" aria-controls="dropdown-menu5">
      <span>Left aligned</span>
      <span class="icon is-small">
        <i class="fas fa-angle-down" aria-hidden="true"></i>
      </span>
    </button>
  </div>
  <div class="dropdown-menu" id="dropdown-menu5" role="menu">
    <div class="dropdown-content">
      <div class="dropdown-item">
        <p>The dropdown is <strong>left-aligned</strong> by default.</p>
      </div>
    </div>
  </div>
</div>

Example

HTML

<div class="dropdown is-right is-active">
  <div class="dropdown-trigger">
    <button class="button" aria-haspopup="true" aria-controls="dropdown-menu6">
      <span>Right aligned</span>
      <span class="icon is-small">
        <i class="fas fa-angle-down" aria-hidden="true"></i>
      </span>
    </button>
  </div>
  <div class="dropdown-menu" id="dropdown-menu6" role="menu">
    <div class="dropdown-content">
      <div class="dropdown-item">
        <p>Add the <code>is-right</code> modifier for a <strong>right-aligned</strong> dropdown.</p>
      </div>
    </div>
  </div>
</div>

Dropup #

You can add the is-up modifier to have a dropdown menu that appears above the dropdown button.

Example

HTML

<div class="dropdown is-up">
  <div class="dropdown-trigger">
    <button class="button" aria-haspopup="true" aria-controls="dropdown-menu7">
      <span>Dropup button</span>
      <span class="icon is-small">
        <i class="fas fa-angle-up" aria-hidden="true"></i>
      </span>
    </button>
  </div>
  <div class="dropdown-menu" id="dropdown-menu7" role="menu">
    <div class="dropdown-content">
      <div class="dropdown-item">
        <p>You can add the <code>is-up</code> modifier to have a dropdown menu that appears above the dropdown button.</p>
      </div>
    </div>
  </div>
</div>

Variables #

Name
Type
Value
Computed Value
Computed Type
$dropdown-menu-min-width
size
12rem
$dropdown-content-background-color
variable
$scheme-main
hsl(0, 0%, 100%)
color
$dropdown-content-arrow
variable
$link
hsl(229, 53%,  53%)
color
$dropdown-content-offset
size
4px
$dropdown-content-padding-bottom
size
0.5rem
$dropdown-content-padding-top
size
0.5rem
$dropdown-content-radius
variable
$radius
4px
size
$dropdown-content-shadow
variable
$shadow
0 0.5em 1em -0.125em rgba($scheme-invert, 0.1), 0 0px 0 1px rgba($scheme-invert, 0.02)
shadow
$dropdown-content-z
string
20
$dropdown-item-color
variable
$text
hsl(0, 0%, 29%)
color
$dropdown-item-hover-color
variable
$scheme-invert
hsl(0, 0%, 4%)
color
$dropdown-item-hover-background-color
variable
$background
hsl(0, 0%, 96%)
color
$dropdown-item-active-color
variable
$link-invert
#fff
color
$dropdown-item-active-background-color
variable
$link
hsl(229, 53%,  53%)
color
$dropdown-divider-background-color
variable
$border-light
hsl(0, 0%, 93%)
color

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