#kefu {
  position: fixed;
  left: 15px;
  top: 50px;
  z-index: 999;
  width: 100px;
  height: 60px;
}
 
 
#kefu span {
  width: 60px;
  height: 60px;

  position: absolute;
  border-radius: 50%;
  cursor: pointer;
  -webkit-transform: translate(0px, 0px);
  transform: translate(0px, 0px);
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 40px 40px;
}
 
#kefu span.wechat:hover .eweima {
  display: block;
}
#kefu span.wechat .eweima {
  position: absolute;
  left:75px;
  top: 0px;
  padding: 0px; 
  width: 150px;
  height: 150px;
}
#kefu span.wechat .eweima img {
  width: 150px;
  height: 150px;
  display: block;
}
#kefu span.wechat .eweima small {
  padding-top: 10px;
  font-style: normal;
  font-style: 14px;
  text-align: center;
  color: #fff;
  display: block;
}
 
 
#kefu .eweima,
#kefu .tel {  display: none;}