背景画像のリピート方法を指定する

background-repeat:
	repeat|repeat-x|repeat-y|no-repeat
;

div{
	background-image:URL(back.gif);
	background-repeat:repeat;
	height:160px;
	width:50%;
}

div{
	background-image:URL(back.gif);
	background-repeat:repeat-x;
	height:160px;
	width:50%;
}

div{
	background-image:URL(back.gif);
	background-repeat:repeat-y;
	height:160px;
	width:50%;
}

div{
	background-image:URL(back.gif);
	background-repeat:no-repeat;
	height:160px;
	width:50%;
}