.bg-img{
	-webkit-background-size: cover;
	-moz-background-size: cover;
	background-size: cover;
	-o-background-size: cover;
	background-position: center center;
}

.bg-starry-night{
	background-color:black;
	background-image:
	radial-gradient(white, rgba(255,255,255,.02) 2px, transparent 40px),
	radial-gradient(white, rgba(255,255,255,.015) 1px, transparent 30px),
	radial-gradient(white, rgba(255,255,255,.01) 2px, transparent 40px),
	radial-gradient(rgba(255,255,255,.4), rgba(255,255,255,.01) 2px, transparent 30px);
	background-size: 550px 550px, 350px 350px, 250px 250px, 150px 150px; 
	background-position: 0 0, 40px 60px, 130px 270px, 70px 100px;
}

.bg-stairs{
	background: 
	linear-gradient(63deg, #999 23%, transparent 23%) 7px 0, 
	linear-gradient(63deg, transparent 74%, #999 78%), 
	linear-gradient(63deg, transparent 34%, #999 38%, #999 58%, transparent 62%), 
	#444;
	background-size: 16px 48px;
}

.bg-carbon-fibre{
	background:
	radial-gradient(black 15%, transparent 16%) 0 0,
	radial-gradient(black 15%, transparent 16%) 8px 8px,
	radial-gradient(rgba(255,255,255,.1) 15%, transparent 20%) 0 1px,
	radial-gradient(rgba(255,255,255,.1) 15%, transparent 20%) 8px 9px;
	background-color:#282828;
	background-size:16px 16px;
}

.bg-carbon{
	background:
	linear-gradient(27deg, #151515 5px, transparent 5px) 0 5px,
	linear-gradient(207deg, #151515 5px, transparent 5px) 10px 0px,
	linear-gradient(27deg, #222 5px, transparent 5px) 0px 10px,
	linear-gradient(207deg, #222 5px, transparent 5px) 10px 5px,
	linear-gradient(90deg, #1b1b1b 10px, transparent 10px),
	linear-gradient(#1d1d1d 25%, #1a1a1a 25%, #1a1a1a 50%, transparent 50%, transparent 75%, #242424 75%, #242424);
	background-color: #131313;
	background-size: 20px 20px;
}

.bg-upholstery{
	background:
	radial-gradient(hsl(0, 100%, 27%) 4%, hsl(0, 100%, 18%) 9%, hsla(0, 100%, 20%, 0) 9%) 0 0,
	radial-gradient(hsl(0, 100%, 27%) 4%, hsl(0, 100%, 18%) 8%, hsla(0, 100%, 20%, 0) 10%) 50px 50px,
	radial-gradient(hsla(0, 100%, 30%, 0.8) 20%, hsla(0, 100%, 20%, 0)) 50px 0,
	radial-gradient(hsla(0, 100%, 30%, 0.8) 20%, hsla(0, 100%, 20%, 0)) 0 50px,
	radial-gradient(hsla(0, 100%, 20%, 1) 35%, hsla(0, 100%, 20%, 0) 60%) 50px 0,
	radial-gradient(hsla(0, 100%, 20%, 1) 35%, hsla(0, 100%, 20%, 0) 60%) 100px 50px,
	radial-gradient(hsla(0, 100%, 15%, 0.7), hsla(0, 100%, 20%, 0)) 0 0,
	radial-gradient(hsla(0, 100%, 15%, 0.7), hsla(0, 100%, 20%, 0)) 50px 50px,
	linear-gradient(45deg, hsla(0, 100%, 20%, 0) 49%, hsla(0, 100%, 0%, 1) 50%, hsla(0, 100%, 20%, 0) 70%) 0 0,
	linear-gradient(-45deg, hsla(0, 100%, 20%, 0) 49%, hsla(0, 100%, 0%, 1) 50%, hsla(0, 100%, 20%, 0) 70%) 0 0;
	background-color: #300; 
	background-size: 100px 100px;
}

.bg-lined-paper{
	background-color: #fff; 
	background-image: 
	linear-gradient(90deg, transparent 79px, #abced4 79px, #abced4 81px, transparent 81px),
	linear-gradient(#eee .1em, transparent .1em);
	background-size: 100% 1.2em;
}

.bg-blueprint-grid{
	background-color:#269;
	background-image: linear-gradient(white 2px, transparent 2px),
	linear-gradient(90deg, white 2px, transparent 2px),
	linear-gradient(rgba(255,255,255,.3) 1px, transparent 1px),
	linear-gradient(90deg, rgba(255,255,255,.3) 1px, transparent 1px);
	background-size:100px 100px, 100px 100px, 20px 20px, 20px 20px;
	background-position:-2px -2px, -2px -2px, -1px -1px, -1px -1px
}