I had the same issue, and I didn't want to add an additional library beyond bootstrap. As recommended, you can usedata-target="#your-collapsing-element"
, removing the href
attribute completely.
The basics
To make a panel collapse you need:
On the element used to trigger collapse:
data-toggle="collapse" data-target="#my-collapsing-element"
On the element that collapses:
id="my-collapsing-element"
On the element wrapping both the "trigger" element and the collapsing element:
class="panel"
Putting it all together
You can optionally add parent elements to make it part of a group, and add add the css classes "collapse in
" to the collapsing element to make its default state closed. A full example:
<div id="accordion">
<div class="panel">
<a data-toggle="collapse" data-parent="#accordion" data-target="#collapse1">
Heading 1
</a>
<div id="collapse1">
Content for panel 1
</div>
</div>
<div class="panel">
<a data-toggle="collapse" data-parent="#accordion" data-target="#collapse2">
Heading 2
</a>
<div id="collapse2" class="collapse in">
Content for panel 2
</div>
</div>
</div>
You can get better button behaviors by using a <button>
element rather than an <a>
. Overriding bootstrap's styling for .panel
can be done by adding your own styling for the panel
css class.
<div class="panel its-my-panel">
.panel.its-my-panel {
margin-bottom: 0;
background-color: transparent;
border: none;
border-radius: 0;
-webkit-box-shadow: none;
box-shadow: none;
}
.my-panel-heading {
cursor: pointer;
}
/* Overrides for .panel--theonly required bootstrap class */
.panel.my-panel-overrides {
margin-bottom: 0;
background-color: transparent;
border: none;
border-radius: 0;
-webkit-box-shadow: none;
box-shadow: none;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<div id="accordion">
<div class="panel my-panel-overrides">
<a class="my-panel-heading" data-toggle="collapse" data-parent="#accordion" data-target="#collapse1">
Collapsible Group 1</a>
<div id="collapse1" class="collapse in">
Content for panel 1
</div>
</div>
<div class="panel my-panel-overrides">
<a class="my-panel-heading" data-toggle="collapse" data-parent="#accordion" data-target="#collapse2">
Collapsible Group 2</a>
<div id="collapse2" class="collapse">
Content for panel 2
</div>
</div>
<div class="panel my-panel-overrides">
<a class="my-panel-heading" data-toggle="collapse" data-parent="#accordion" data-target="#collapse3">
Collapsible Group 3</a>
<div id="collapse3" class="collapse">
Content for panel 3
</div>
</div>
</div>