@font-face {
	font-family: 'source_sans';
	src: url('sourcesanspro-bold-webfont.woff');
	font-weight: bold;
	font-style: normal;
}

@font-face {
	font-family: 'source_sans';
	src: url('sourcesanspro-regular-webfont.woff');
	font-weight: normal;
	font-style: normal;
}

html {
	height: 100%;
	width: 100%;
}

h1 {
	margin: 0;	
}

body {
	font: 13px/normal 'source_sans', Microsoft YaHei, STHeiti;
	color: white;
	background-image: url(background.jpg);
	background-size: cover;
	background-position-x: center; 
	background-position-y: bottom; 
	display: flex;
	flex-direction: column;
	height: 100%;
	width: 100%;
	margin: 0;
}

header {
	height: 120px;
	background-color: rgba(0, 103, 177, 0.9);
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
}

main {
	flex: 1;
}

.sub-title {
	display: flex;
	flex-direction: column;
	justify-content: center;
	font-size: 12pt;
}

.sub-title span {
	text-align: center;
}

footer {
	display: flex;
	justify-content: center;
	align-items: center;
	height: 90px;
	background-color: rgba(67, 67, 67, 0.94);
}

.rib-logo {
	height: 60px;
	width: 150px;
}

.rib40-logo {
	height: 60px;
	width: 245px;
}