With basic collapse you can open multiple items at a time. to add bottom border use
.collapse-default as a wrapper of collapse cards and for icons on the right of collapse use
You may want to open one item at a time, for that you can use accordion.
.collapse-shadow as a wrapper of your accordion/collapse
.collapse-border class with your card to create a bordered collapse.
To create a collapse with margin use
.collapse-margin class as a wrapper for your collapse
To create a collapse which opens on hover use
data-open-hover="true" as an attribute with your