.qcode{
  position:fixed;
  right:60px;
  top:42px;
  color:#fff;
  font-size:15px;
  line-height:17px;
  padding-left:27px;
  background:url(https://omo-oss-image.thefastimg.com/portal-saas/new2021122118012592568/cms/image/ea7dbe74-fc03-44cf-afcc-bf81db510b8b.png_1920xaf.png) no-repeat center left;
  cursor:pointer;
}
.qcode img{
  position:absolute;
  left:0;
  top:60px;
  opacity:0;
  transition:all 0.5s ease-out;
}
.qcode:hover img{
  top:27px;
  opacity:1;
}