#cover {
  position: fixed;
  height: 100%;
  width: 100%;
  top: 0;
  left: 0;
  background: #0000009e;
  z-index: 9999;
  font-size: 40px;
  text-align: center;
  padding-top: 300px;
  color: #fff;
  font-family:tahoma;
}