html, body {
	margin: 0;
	width: 100%;
	height: 100%;
}

body {
	padding: 10px;
	box-sizing: border-box;
	font-family: 'Roboto', sans-serif;

	background-image: url(img/bg-layer.jpg);
	background-position: top center;
	-webkit-background-size: cover;
	background-size: cover;
	background-repeat: no-repeat;

	color: #3d3a3c;
}

h1, h2 {
	margin: 0 0 30px;
}

.quiz-form {
	text-align: center;
	position: relative;
	top: 50%;
	transform: translate(0, -50%);
}

.btn svg {
	display: block;
	fill: #fff;
	margin: 0 auto 10px;
}

.btn {
	display: inline-block;
	margin-right: auto;
	margin-left: auto;
	padding: 15px;
	margin: 0 auto;
	background: #31bfc3; /* Old browsers */
	background: -moz-linear-gradient(top,  #31bfc3 0%, #009ead 100%); /* FF3.6-15 */
	background: -webkit-linear-gradient(top,  #31bfc3 0%,#009ead 100%); /* Chrome10-25,Safari5.1-6 */
	background: linear-gradient(to bottom,  #31bfc3 0%,#009ead 100%); /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#31bfc3', endColorstr='#009ead',GradientType=0 ); /* IE6-9 */
	
	border: 1px solid #007D96;

	border-radius: 7px;
	
	color: #fff;
	text-align: center;
	font-size: 18px;

	cursor: pointer;
}