.design-preview-content{
  position:relative;
  width:100%;
  height:100%;
  display: flex;
  font-size: 20px;
  align-items: center;
  justify-content: center;
  iframe{
    height:100%;
    width:100%;
    border:0px;
  }
}
.second{
  width:60px;
  display: inline-block;
}
.design-preview-content.mask{
  background-color: #C5C8CE;
  color:white;
}