* { box-sizing: border-box;}

.container {
	width: 80%;
	margin: 0 auto;
}
/*80% of the horizontal space and centered*/


.header h1 {
	text-align: center;
	margin-bottom: 40px;
	margin-top: 0px;
	padding-top: 20px;
	padding-bottom: 10px;
	box-shadow: 1px 1px 5px grey;
}

selector {
	position: relative;
}

.image {
	display: inline-block;
	float: left;
}

.column {
	display: inline-block;
	width: 30%;
	padding: 0 20px;
	float: left;
}

.main_text {
	clear:both;
	padding-top: 60px;
	padding-bottom: 50px;
}

.back {
	position:fixed;
	bottom:0px;
	height:30px;
	width:80%;
	margin: 0 auto;
	background: white;
	padding: 5px 0 0 5px;
	box-shadow: 1px -1px 5px grey;
}