#container { position:relative; }

.main_content {position:relative; z-index:7; width:980px; margin:0 auto; padding-bottom:30px; }
.main_content:after { content:""; display:block; clear:both; }

.MC_box1 { position:relative; width:100%; height:auto; }/*메인비주얼*/
.MC_box2 { position:relative; top:0; left:0; width:100%; height:auto; } /* 바로가기 */
.MC_box3 { position:relative; width:31%; height:260px; margin-top:40px; float:left; } /* 게시판 */
.MC_box4 { position:relative; width:31%; height:260px; margin:40px 2% 0; float:left; } /* 게시판 */
.MC_box5 { position:relative; width:34%; height:260px; margin-top:40px; float:left; } /* 알림판 */
.MC_box6 { position:relative; width:36%; height:235px; margin-top:40px; float:left; } /* 포토갤러리 */
.MC_box7 { position:relative; width:36%; height:235px; margin:40px 2% 0; float:left; } /* 행사일정 */
.MC_box8 { position:relative; width:24%; height:235px; margin-top:40px; float:left; } /* 오늘의식단 */

@media (max-width: 1080px) {

	#container,
	.main_content,
	.MC_box1, .MC_box2, .MC_box3, .MC_box4, .MC_box5, .MC_box6, .MC_box7, .MC_box8, .MC_box9{-webkit-box-sizing:border-box; -moz-box-sizing:border-box; -ms-box-sizing:border-box; box-sizing:border-box; }

	#container { width:100%; }
	.main_content { width:92%; height:100%; }
	.MC_box3 {width:48%; } /* 게시판 */
	.MC_box4 {width:48%; margin:40px 0 0 4%; } /* 게시판 */
	.MC_box5 {width:48%; } /* 알림판 */
	.MC_box6 {width:48%; height:260px; margin:40px 0 0 4%; } /* 포토갤러리 */
	.MC_box7 {width:48%; margin:40px 4% 0 0; } /* 행사일정 */
	.MC_box8 {width:48%; } /* 오늘의식단 */



}
@media (max-width: 640px) {
	.MC_box3 {width:100%; margin:20px 0 0; } /* 게시판 */
	.MC_box4 {width:100%; margin:10px 0 0; } /* 게시판 */
	.MC_box5 {width:100%; margin:10px 0 0; } /* 알림판 */
	.MC_box6 {width:100%; margin:20px 0 0; height:auto; } /* 포토갤러리 */
	.MC_box7 {width:100%; margin:20px 0 0; } /* 행사일정 */
	.MC_box8 {width:100%; margin:20px 0 0; } /* 오늘의식단 */

}