Reputation: 1125
How can I set the width of a dropdown triggering button in bootstrap 3.0 to be equal to the width of the dropdown list? Similar to what is achieved when using bootstrap-select (http://silviomoreto.github.io/bootstrap-select/). I have tried to wrap the whole list in a div with a col-* class, but that doesn't seem to work:
<div class="row">
<div class="col-xs-4 col-md-4">
<div class="dropdown">
<button type="button" class="btn btn-danger dropdown-toggle" data-toggle="dropdown">Button</button>
<ul class="dropdown-menu" role="menu">
<li><a href="#">Action</a></li>
<li><a href="#">Action</a></li>
<li><a href="#">Action</a></li>
</ul>
</div>
</div>
Thus, I would like: button width = dropdown menu list = col-* width.
Upvotes: 38
Views: 100706
Reputation: 4413
I came here looking for a solution to a similar problem, although in my case the dropdown wasn't within a col div. I wanted the dropdown button to match the width of the dropdown list, dependant on the content width of whichever was wider, similar to a select dropdown. If anyone is looking for a similar solution here it is:
.dropdown-container {
float:right;
height:60px;
}
.position-dropdown-controller {
position: absolute;
right:0;
}
.dropdown-toggle,
.dropdown-menu {
width: 100%;
min-width: 0;
}
.dropdown-toggle {
text-align: right;
}
.dropdown-menu {
height: 0;
text-align: center;
display: block !important;
visibility: hidden;
position: relative;
float: none;
}
.open .dropdown-menu {
display: block !important;
visibility: visible;
height: auto;
}
<div class="dropdown-container">
<div class="position-dropdown-controller">
<div class="dropdown">
<button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenu1" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true">Dropdown<span class="caret"></span></button>
<ul class="dropdown-menu" aria-labelledby="dropdownMenu1">
...
</ul>
</div>
</div>
</div>
In this example I wanted the dropdown floated to the right, but it can just as easily be tweaked to work however you like.
Upvotes: 0
Reputation: 634
You can set the width of .dropdown-toggle.
I recommend to use text-overflow
ellipsis when the dropdown becomes too small. It's not necessary to style .dropdown-menu
. You can set the width of the dropdown to any other value if you want to use it in .input-group
or not in the grid.
.dropdown-toggle {
overflow: hidden;
padding-right: 24px /* Optional for caret */;
text-align: left;
text-overflow: ellipsis;
width: 100%;
}
/* Optional for caret */
.dropdown-toggle .caret {
position: absolute;
right: 12px;
top: calc(50% - 2px);
}
Upvotes: 9
Reputation: 1125
I found the solution by setting the dropdown-menu and button width=100%.
.dropdown-menu {
width: 100%;
}
.btn{
width: 100%;
}
Now both the button and dropdown list have the same width, controlled by the column width.
Upvotes: 39
Reputation: 30993
If I understand correctly you want to style the menu width according to the larger option you have to override the min-width
property of the .dropdown-menu
list like:
.dropdown-menu {
min-width: 0px !important;
}
Demo: http://jsfiddle.net/faxyz/4/
Upvotes: 30