p{
	font-size:14px;
}


/* position:static,relative,absolute,fixed */


/*要素の重なり z-index*/


#id1{
	position :relative;
	left:0;
	background-color:red;
	}
#id2{
	position :relative;
	left:10px;
	background-color:blue;
	}
#id3{
	position :relative;
	left:20px;
	background-color:green;
	}