ul{
      position: absolute;
      transform: translate(-50%, -50%);
      margin: 0;
      padding: 0;
      display: flex;
      }
      ul li{
      list-style: none;
      margin-left: 40px;
      margin-right:40px;
      }
      ul li .fa{
      font-size: 30px;
      color: #262626;
      line-height: 40px;
      transition: .5s;
      }
      ul li a{
      position: relative;
      display: block;
      width: 40px;
      height: 40px;
      background-color: #fff;
      text-align: center;
      vertical-align:middle;
      transform: perspective(60px) rotate(-30deg) skew(25deg) translate(0,0);
      transition: .5s;
      box-shadow: -20px 20px 10px rgb(0, 0, 0, 0.5);
      }
      ul li a::before{
      content: "";
      position: absolute;
      top: 10px; 
      left: -20px;
      height: 100%;
      width: 20px;
      background: #b1b1b1;
      transition: .5s;
      transform: rotate(0deg) skewY(-45deg);
      }
      ul li a::after{
      content: "";
      position: absolute;
      top: 40px;
      left: -11px;
      height: 20px;
      width: 100%;
      background: #b1b1b1;
      transition: .5s;
      transform: rotate(0deg) skewX(-45deg);
      }
      ul li a:hover{
      transform: perspective(1000px) rotate(-30deg) skew(25deg) translate(20px, -20px);
      box-shadow: -50px 50px 50px rgb(0, 0, 0, 0.5);
      }
      ul li:hover .fa{
      color: #fff;
      }
      ul li a:hover{
      transform: perspective(1000px) rotate(-30deg) skew(25deg) translate(20px, -20px);
      box-shadow: -50px 50px 50px rgb(0, 0, 0, 0.5);
      }
      ul li:hover:nth-child(1) a{
      background: #3b5999;
      }
      ul li:hover:nth-child(1) a:before{
      background: #2e4a86;
      }
      ul li:hover:nth-child(1) a:after{
      background: #4a69ad;
      }
      ul li:hover:nth-child(2) a{
      background: #FA1F1F;
      }
      ul li:hover:nth-child(2) a:before{
      background: #E70303;
      }
      ul li:hover:nth-child(2) a:after{
      background: #F92727;
      }
      ul li:hover:nth-child(3) a{
      background: #0077B5;
      }
      ul li:hover:nth-child(3) a:before{
      background: #036aa0;
      }
      ul li:hover:nth-child(3) a:after{
      background: #0d82bf;
      }
      ul li:hover:nth-child(4) a{
      background: linear-gradient(#400080, transparent), linear-gradient(200deg, #d047d1, #ff0000, #ffff00);
      margin-right:0px;
      }
      ul li:hover:nth-child(4) a:before{
      background: linear-gradient(#400080, transparent), linear-gradient(200deg, #d047d1, #ff0000, #ffff00);
      margin-right:0px;
      }
      ul li:hover:nth-child(4) a:after{
      background: linear-gradient(#400080, transparent), linear-gradient(200deg, #d047d1, #ff0000, #ffff00);
      margin-right:0px;
      }
      ul li:hover:nth-child(5) a{
      background: #55acee;
      }
      ul li:hover:nth-child(5) a:before{
      background: #4184b7;
      }
      ul li:hover:nth-child(5) a:after{
      background: #4d9fde;
      }
      ul li:hover:nth-child(6) a{
      background: #FA1F1F;
      }
      ul li:hover:nth-child(6) a:before{
      background: #E70303;
      }
      ul li:hover:nth-child(6) a:after{
      background: #F92727;
      }
      ul li:hover:nth-child(7) a{
      background: #3b5999;
      }
      ul li:hover:nth-child(7) a:before{
      background: #2e4a86;
      }
      ul li:hover:nth-child(7) a:after{
      background: #4a69ad;
      }