#demo{
  position:relative;
  /*width:800px;
  height:400px;*/
	width:vw;
	height:vh;
  background-color:#000;
  margin:auto;
  overflow:hidden;
	z-index:5;
}

#demo h3 {
  position:absolute;
	color: ghostwhite;
  font-family: 'Asap', sans-serif;
  font-weight:700;
  margin:0;
  padding:0;
  width:800px;
  text-align:center;
  display: none;
  font-size:120px;
  top:265px;
	box-sizing: border-box;
	border-color: red;
	z-index:99;
}