/* 
 * #my-id
 * .my-class
 * img[src] # <img> with src= set
 * a:hover
 *
 * */

html {
	background-color: #6B6B6B;
	margin: 0 auto;
}

header {
	background-color: #2C2C2C;
	margin: 0 auto;
}