.embed
{
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center center;
}

[class^="embed-"],
[class*=" embed-"]
{
  @extend .embed;
}

[class^="icon-"],
[class*=" icon-"],
.icon
{
  padding-left: 1.4em;
  background-position-x: left;
  background-position-y: center;
  background-size: 1em;
  background-repeat: no-repeat;
}

.embed-80
{
  @extend .embed;
  background-size: 80%;
}
.embed-50
{
  @extend .embed;
  background-size: 50%;
}