//

// Component animations

// --------------------------------------------------

// Heads up!

//

// We don't use the `.opacity()` mixin here since it causes a bug with text

// fields in IE7-8. Source: https://github.com/twbs/bootstrap/pull/3552.

.fade {

  opacity: 0;

  .transition(opacity .15s linear);

  &.in {

    opacity: 1;

  }

}

.collapse {

  display: none;

  visibility: hidden;

  &.in      { display: block; visibility: visible; }

  tr&.in    { display: table-row; }

  tbody&.in { display: table-row-group; }

}

.collapsing {

  position: relative;

  height: 0;

  overflow: hidden;

  .transition-property(~"height, visibility");

  .transition-duration(.35s);

  .transition-timing-function(ease);

}