.fade {
@include transition($transition-fade);
&:not(.show) {
opacity: 0;
}
}
// scss-docs-start collapse-classes
.collapse {
&:not(.show) {
display: none;
}
}
.collapsing {
height: 0;
overflow: hidden;
@include transition($transition-collapse);
}
// scss-docs-end collapse-classes