To make tabs fade in, add .fade
to each .tab-pane
. The active tab pane must also have .in
class to make the initial content visible.
<ul class="nav nav-tabs" role="tablist">
<li role="presentation">
<a href="#id-of-content-1" role="tab" data-toggle="tab">
Tab 1
</a>
</li>
<li role="presentation" class="active">
<a href="#id-of-content-2" role="tab" data-toggle="tab">
Tab 2
</a>
</li>
<li role="presentation">
<a href="#id-of-content-3" role="tab" data-toggle="tab">
Tab 3
</a>
</li>
</ul>
<div class="tab-content">
<div role="tabpanel" id="id-of-content-1" class="tab-pane fade">
Tab content 1
</div>
<div role="tabpanel" id="id-of-content-2" class="tab-pane fade active in">
Tab content 2
</div>
<div role="tabpanel" id="id-of-content-3" class="tab-pane fade">
Tab content 3
</div>
</div>