@charset "utf-8";
/*//////////////////////////////////////////　Viewer　//////////////////////////////////////////*/
#viewer {
    margin: 0 auto 25px;
    width: 980px;
    height: 412px;
    text-align: left;
    overflow: hidden;
    position: relative;
}

@media screen and (max-device-width: 640px) {
	#viewer {
	    margin: 0 auto 45px;
	    width: 640px;
	    height: 412px;
	    text-align: center;
	    overflow: hidden;
	    position: relative;
	}
}/* /640px */
 
#viewer img {
    top: 0;
    left: 0;
    position: absolute;
}