bootstrap dropdown
.dropdown
Add a simple dropdown menu with buttons.
<div class=”dropdown”>
<button class=”btn btn-secondary dropdown-toggle”
type=”button” id=”dropdownMenu1” data-toggle=”dropdown”
aria-haspopup=”true” aria-expanded=”false”>
Dropdown
</button>
<div class=”dropdown-menu” aria-labelledby=”dropdownMenu1”>
<a class=”dropdown-item” href=”#!”>Action</a>
<a class=”dropdown-item” href=”#!”>Another action</a>
</div>
</div>
.dropdown-toggle-split
Create split button dropdowns with proper spacing around the dropdown caret.
<div class=”btn-group”>
<button type=”button” class=”btn btn-secondary”>Dropdown</button>
<button type=”button” class=”btn btn-secondary dropdown-toggle dropdown-togglesplit” data-toggle=”dropdown” aria-haspopup=”true” aria-expanded=”false”>
<span class=”sr-only”>Toggle Dropdown</span>
</button>
<div class=”dropdown-menu”>
<a class=”dropdown-item” href=”#!”>Action</a>
<a class=”dropdown-item” href=”#!”>Another action</a>
</div>
</div>
.dropup
Did you know that you can style a menu coming up rather than down? Now you do!
<!-- Default dropup button -->
<div class=”btn-group dropup”>
<button type=”button” class=”btn btn-secondary dropdown-toggle” datatoggle=”dropdown” aria-haspopup=”true” aria-expanded=”false”>
Dropup
</button>
<div class=”dropdown-menu”>
<!-- Dropdown menu links -->
</div>
</div>
.dropright
Provide the menu to the right of the button.
<!-- Default dropright button -->
<div class=”btn-group dropright”>
<button type=”button” class=”btn btn-secondary dropdown-toggle” datatoggle=”dropdown” aria-haspopup=”true” aria-expanded=”false”>
Dropright
</button>
<div class=”dropdown-menu”>
<!-- Dropdown menu links -->
</div>
</div>
.dropleft
...And you can also display the menu on the left.
<!-- Default dropleft button -->
<div class=”btn-group dropleft”>
<button type=”button” class=”btn btn-secondary dropdown-toggle” datatoggle=”dropdown” aria-haspopup=”true” aria-expanded=”false”>
Dropleft
</button>
<div class=”dropdown-menu”>
<!-- Dropdown menu links -->
</div>
</div>
.dropdown-item-text
Add non-interactive dropdown items to your menu.
<div class=”dropdown-menu”>
<span class=”dropdown-item-text”>Plain text</span>
<a class=”dropdown-item” href=”#”>Clickable action</a>
<a class=”dropdown-item” href=”#”>Another action</a>
<a class=”dropdown-item” href=”#”>Whatever else you need</a>
</div>
.dropdown-item disabled
You can also choose to disable any menu item(s).
<div class=”dropdown-menu”>
<a class=”dropdown-item” href=”#”>Active link</a>
<a class=”dropdown-item disabled” href=”#”>Disabled link</a>
<a class=”dropdown-item” href=”#”>One more link</a>
</div>
.dropdown-divider
Add a simple divider between menu elements to draw extra attention.
<div class=”dropdown-divider”></div>
.dropdown-menu-right
Align the entire menu to the right
<div class=”btn-group”>
<button type=”button” class=”btn btn-secondary dropdown-toggle” datatoggle=”dropdown” aria-haspopup=”true” aria-expanded=”false”>
This dropdown’s menu is right-aligned
</button>
<div class=”dropdown-menu dropdown-menu-right”>
<button class=”dropdown-item” type=”button”>Action</button>
<button class=”dropdown-item” type=”button”>Another action</button>
<button class=”dropdown-item” type=”button”>Something else here</button>
</div>
</div>