.wmkc-email {
    background: url(/img/wmkc1_a.png) no-repeat center center;
  }
  
  .wmkc-skype {
    background: url(/img/wmkc2_a.png) no-repeat center center;
  }
  
  .wmkc-whatsapp {
    background: url(/img/wmkc3_a.png) no-repeat center center;
  }
  
  .wmkc-wechat {
    background: url(/img/wmkc4_a.png) no-repeat center center;
  }
  .wmkc-email:hover {
    background: #F90 url(/img/wmkc1_b.png) no-repeat center center;
  }
  
  .wmkc-skype:hover {
    background: #0091DF url(/img/wmkc2_b.png) no-repeat center center;
  }
  
  .wmkc-whatsapp:hover {
    background: #2CB740 url(/img/wmkc3_b.png) no-repeat center center;
  }
  
  .wmkc-wechat:hover {
    background: #51C332 url(/img/wmkc4_b.png) no-repeat center center;
  }