Is there a way to collapse the the Bootstrap Collapse plugin from horizontally instead of vertically? Looking at the code this ability doesn\'t seem to be built in, but I\'m
With bootstrap 3.0.0, you just need to add the width class to the target element and then the following css if you want it to animate.
.collapse.width {
height: auto;
-webkit-transition: width 0.35s ease;
-moz-transition: width 0.35s ease;
-o-transition: width 0.35s ease;
transition: width 0.35s ease;
}