.component-youtube + p.align-center::before {
  content: "";
  display: inline-block;
  background-image: url(/resources/images/icon-volumeon.png);
  background-repeat: no-repeat;
  width: 21px;
  height: 16px;
  max-width: 100%;
  padding-bottom: 1px;
  margin-right: 5px;
  vertical-align: middle;
}