.device {
  position: relative;
  top: 50px;
  display: block;
  width: 395px;
  height: 813px;
  background-image: url(../images/device-sprite.png);
  background-repeat: no-repeat;
  background-position: 0 0;
  background-size: 300%;
  margin: 0 auto;
}

.device .device-content {
  position: absolute;
  top: 117px;
  left: 37px;
  width: 321px;
  height: 569px;
  overflow: hidden;
  background-color: #fff;
}

.device .bar, .device .content, .device .modal, .device .fixed {
  position: absolute;
}