body { 
    		background-image: url('http://www.mhswebdesign.com/wp-content/uploads/2015/10/halloween-pug1.jpg');
    		background-repeat: no-repeat; /* also try repeat, repeat-x, and repeat-y to see what happens */
    		background-position: center;  /* other choices are left, right, left top, left bottom, right top, right bottom */
		}

	/* this is how you add a comment in css */