.icons {
    
    
    margin:0;
    padding:0;
    
  }
  .icons .diseño {
    list-style:none;
  }
  .icons .diseño a {
    display:block;
    position:relative;
    width: 50px;
    height:50px;
    line-height:50px;
    font-size:40px;
    text-align:center;
    text-decoration:none;
    color:#fcfcfc;
    margin: 0 10px;
    transition:.5s;
    
  }
  .icons .diseño a span {
    position:absolute;
    transition: transform .5s;
  }
  .icons .diseño a span:nth-child(1),
  .icons .diseño a span:nth-child(3){
    width:100%;
    height:3px;
    background:#9e0606;
  }
  .icons .diseño a span:nth-child(1) {
    top:0;
    left:0;
    transform-origin: right;
  }
  .icons .diseño a:hover span:nth-child(1) {
    transform: scaleX(0);
    transform-origin: left;
    transition:transform .5s;
  }
  
  .icons .diseño a span:nth-child(3) {
    bottom:0;
    left:0;
    transform-origin: left;
  }
  .icons .diseño a:hover span:nth-child(3) {
    transform: scaleX(0);
    transform-origin: right;
    transition:transform .5s;
  }
  
  .icons .diseño a span:nth-child(2),
  .icons .diseño a span:nth-child(4){
    width:3px;
    height:100%;
    background:#404040;
  }
  .icons .diseño a span:nth-child(2) {
    top:0;
    left:0;
    transform:scale(0);
    transform-origin: bottom;
  }
  .icons .diseño a:hover span:nth-child(2) {
    transform: scale(1);
    transform-origin: top;
    transition:transform .5s;
  }
  .icons .diseño a span:nth-child(4) {
    top:0;
    right:0;
    transform:scale(0);
    transform-origin: top;
  }
  .icons .diseño a:hover span:nth-child(4) {
    transform: scale(1);
    transform-origin: bottom;
    transition:transform .5s;
  }