/******** Bootstrap Collapse Styles *********/
.collapse {
display: none; visibility: hidden; &.in { display: block; visibility: visible; }
} .collapsing {
position: relative; height: 0; overflow: hidden; -webkit-transition-timing-function: ease; -o-transition-timing-function: ease; transition-timing-function: ease; -webkit-transition-duration: .35s; -o-transition-duration: .35s; transition-duration: .35s; -webkit-transition-property: height, visibility; -o-transition-property: height, visibility; transition-property: height, visibility;
}