a.contWhats {
  position: fixed;
  bottom: 150px;
  right: -155px;
  background: #01e675;
  border-radius: 10px 0px 0px 10px;
  color: #fff !important;
  text-align: center;
  font-weight: 600;
  padding: 10px 15px 10px 75px;
  -webkit-box-shadow: -5px 5px 0 0 rgba(0,0,0,.1);
  box-shadow: -5px 5px 0 0 rgba(0,0,0,.1);
  z-index: 300;
}

a.contWhats:hover {
    right: 0;
}

a.contWhats:before {
    content: '';
    position: absolute;
    width: 40px;
    height: 40px;
    top: 50%;
    left: 10px;
    margin-top: -20px;
    /*background: url(images/iconwhats.svg) center no-repeat;*/
    background: url("https://enega.com.mx/assets/img/iconWhats.svg") center no-repeat;
    background-size: contain;
}

@media (max-width: 480px){
    a.contWhats {
      bottom: 75px;
      right: -140px;
    }
}