/*.input-prepend.input-append input {
  font-size: 24px;
  padding-top: 11px;
  padding-bottom: 11px;
  width: 100px;
  text-align: right;
}
.stock_error {
  color: #DB5656;
}*/

/*.detail-head-cart .inquire-product {
	display: block;
	text-align: center;
	width: 100%;
	height: 60px;
	line-height: 60px;
	background-color: rgba(0, 0, 0, 0.2);
	border: 0;
	font-size: 1.5rem;
	color: rgba(0, 0, 0, 1.0);
	cursor: pointer;
	-webkit-transition: background-color 250ms ease;
	transition: background-color 250ms ease;
}

.detail-head-cart .inquire-product:hover {
	background-color: rgba(0, 0, 0, 0.3);
}*/

.youtube {
  position: relative;
  padding-bottom: 56.25%;  /* ²£16:½Ä9 */
  height: 0;
  overflow: hidden;
}
.youtube iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}