a {
  font-weight:bold;
  text-decoration:none;
}
a:link, a:visited, a:active {
  color:#000000;
}
a:hover {
  color:#91E637;
}

     a {
      position: relative;
      display: inline-block;
      text-decoration: none;
    }
    a::after  {
      position: absolute;
      bottom: -4px;
      left: 0;
      content: '';
      width: 100%;
      height: 1px;
      background: #3791E6;
      transform: scale(0, 1);
      transform-origin: left;
      transition: transform .3s;
    }
   a:hover::after{
      transform: scale(1, 1);
    }
.del {
    text-decoration: line-through;
  }
  span{
      font-size: 13px;
  }