.slidebanner-wrap {
    position: relative;
    padding-bottom: 22.3%; /*680-150 アスペクト比 */
    height: 0;
    overflow: hidden;
}
.slidebanner-wrap iframe {
     	position: absolute;
     	top: 0;
     	left: 0;
     	width: 100%;
     	height: 100%;
}

/*width:1248pxいっぱいまで使用*/
.slidebanner_outer {
	text-align:center;
	padding:0;
	margin: 0 0 2em 0;
   background: #EFEFEF;
}
.slidebanner_outer .slidebanner {
		max-width:100%;
		margin:0 auto;
}