style.css

/*html {
  height: 100%;
}

body {
  height: 100vh;
}*/

.container-fluid { 
	margin: 0;
	padding: 0;
	border: 0;
	outline: 0;

	height: 100vh;
	background: url('https://images.unsplash.com/photo-1518459506758-fcec22c80e75?ixlib=rb-0.3.5&s=0d9f794e3a955f8e115664173e2d3d5e') no-repeat center center fixed; 

	-webkit-background-size: cover;
	-moz-background-size: cover;
	-o-background-size: cover;
	background-size: cover;

}

#contenttest {
	color: white;
}

/*body {
	height: 100%;
	width: 100%;
}*/
/*.bg {
	
	height: 100%;
    background-image: url('laptop.jpg');
    background-size: cover;
    background-color: black;
    background-repeat: no-repeat;
   	background-position: center top;
   	background-origin: content-box;
}
*/
/*.msg {
	padding: 0;
	margin: 0;
}*/
#headmsg {
	
	font-family: "Arial", cursive;
	font-size-adjust: 1.5;
	font-size: 150%;
	color: white;
	text-align: center;
	text-transform: uppercase;
	text-shadow: 1px 2px orange;
	position: relative;
	top: 30vh;
}

.info {
	width: 100%;
	position: relative;
	top: 55vh;
	display: flex;
	justify-content: center;
}

.btn-info {
	text-decoration-style: bold;
	background-color: orange;
	border-color: orange;
}

.btn-info:hover {
	background-color: #cc6600;
}