div.imac-mockup {
  position: relative;
  max-width: 1000px;
  margin: 20px;
}

.imac-mockup img.device {
  width: 100%;
  height: auto;
}

.imac-mockup .screen {
  position: absolute;
  width: 92%;
  height: 64.5%;
  top: 5%;
  border-radius: 2px;
  left: 4%;
  background-color: #aaa;
  overflow: hidden;
  background: url(../../assets/img/screen-content-imac.jpg);
  background-size: cover;
  background-position: center;
}

.imac-mockup .screen:before {
  content: '';
  background-color: #fff;
  position: absolute;
  width: 70%;
  height: 140%;
  top: -26%;
  right: -39%;
  transform: rotate(-19deg);
  opacity: 0.1;
}