html {
	background:  url("../img/bg.jpg") fixed no-repeat;
}
header {
	background: none;
}
.teaser{ 
	position: relative;
	font-size:20px;
	max-width: 1000px;
	margin: 0 auto;
}
.wrapper {
	padding: 0;
	margin: 0;
	margin-top: 50px;
}
@media only screen and (min-width: 600px) {
	header{
		position: fixed;
	}
	.wrapper {
	margin-top: 180px;
	}
	footer {
	background: none;
	}
}