/* breakpoints */
.iframe {
  padding: 15px 15px 15px 15px;
  position: relative;
}

.iframe:before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background: url("../images/iframe") #e3e3e3 center center no-repeat;
}

.iframe iframe {
  width: 100%;
}