html,body {
    width: 100%;
    height: 100%;
    margin: 0px;
    padding: 0px;
    overflow-x: hidden;
}

.xfooter {
   border-top-style: solid;
   border-top-color: silver;
   border-top-width: 1px;
   position: fixed;
   left: 0;
   bottom: 0;
   width: 100%;
   text-align: center;
   opacity: 0.98;
   background-color: white;
}

#goTop {
  position: fixed;
  bottom: 3px;
  right: 15px;
  z-index: 99;
  outline: 1px;
  height: 32px;
  width: 32px;
  background-color: white;
  background: rgba(255,255,255,0.8);
  border: 1px solid;
  border-color: #0C6EFD;
  cursor: pointer;
  font-size: 18px;
  text-align: center;
}