header{
    position:absolute;
    top:0;
    left:0;
    width:100%;
    z-index:200;
}

#st-container{
  position: absolute;
  z-index: 100;
  top: 110px;
  right: 16px;
  height: 80px;
  width: 80px;
  border-radius: 5px;
  border-style: solid;
  border-width: 1px;
  border-color: #000;
  box-shadow: 0px 0px 3px #000;
  background-color: #959E9D;
  color: #fff;
  cursor: pointer;
  transition: all .2s ease-in-out;
}