/* some elements used in demo only */
  .spinner-preview {
  	width: 100px;
  	height: 100px;
  	text-align: center;
  	margin-top: 60px;
  }
  
  .dropdown-preview {
  	margin: 0 5px;
  	display: inline-block;
  }
  .dropdown-preview  > .dropdown-menu {
  	display: block;
  	position: static;
  	margin-bottom: 5px;
  }