Bootstrap Collapse component with a variety of options to provide uniquely looking Collapse component that matches the Keen's design standards.
.collapse hides content.collapsing is applied during transitions.collapse.show shows contentdata-target attribute. In both cases, the data-toggle="collapse" is required.
<button> or <a> can show and hide multiple elements by referencing them with a JQuery selector in its href or data-target attribute. Multiple <button> or <a> can show and hide an element if they each reference it with their href or data-target attribute
