seminar/app/assets/stylesheets/seminar/background_style/1/css/background.css

body {
    background-color: #c9d7e4;
}
@media (min-width: 768px){
	.container {
	    width: 46.875em;
	}
	header{
		margin-top: 4em;
	}
}
@media (max-width: 767px){
	.container {
	    width: 100%;
	}
}