PC 커뮤니티 테마 css폴더 내 style.css 파일에서 20번째 줄쯤의 Layout 스타일 부분을 아래와 같이 변경하시면 됩니다.

/*----- Layout -----*/
.wrapper {width:100%;min-width:1200px;margin:0 auto 0 auto;text-align:left;background:#e5e5ea}
.wide-layout {background:#fff}
.boxed-layout {padding:0;box-shadow:0 0 10px #bbb;margin-left:auto !important;margin-right:auto !important}
.boxed-layout .ebp-body .container {border-left:0;border-right:0}
.boxed-layout .footer .container {border-left:0;border-right:0}
.container {width:1200px;margin:0 auto 0 auto;text-align:left;position:relative}
.topbar {display:block;border-bottom:1px solid #bbb;background:url("../image/pattern/pattern_bg1.png") top left repeat;background-size:132px 132px;padding:0;margin:0}
.header {padding:20px 0;background:url("../image/pattern/pattern_bg1.png") top left repeat;background-size:132px 132px}
.ebp-body {padding:0;background:#fff;position:relative;overflow:hidden}
.ebp-body .container {display:block;overflow:hidden;position:relative;border-left:1px solid #ddd;border-right:1px solid #ddd;background:#fff}
.content {display:block;overflow:hidden;position:relative;min-height:800px;width:1200px;overflow:hidden;background-color:#fff;padding:10px}
.content-left {display:block;overflow:hidden;position:relative;min-height:800px;width:890px;width:-webkit-calc(100% - 310px);width:-moz-calc(100% - 310px);width:calc(100% - 310px);-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;float:left;overflow:hidden;background-color:#fff;padding:10px;border-right:1px solid #ddd}
.content-right {display:block;overflow:hidden;position:relative;min-height:800px;width:890px;width:-webkit-calc(100% - 310px);width:-moz-calc(100% - 310px);width:calc(100% - 310px);-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;float:right;overflow:hidden;background-color:#fff;padding:10px;border-left:1px solid #ddd}
.side-left {display:block;overflow:hidden;position:relative;min-height:800px;width:310px; width:-webkit-calc(100% - 890px);width:-moz-calc(100% - 890px);width:calc(100% - 890px);-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;float:left;overflow:hidden;background-color:#fff;padding:10px;box-shadow:0 0 0 1px #ddd}
.side-right {display:block;overflow:hidden;position:relative;min-height:800px;width:310px; width:-webkit-calc(100% - 890px);width:-moz-calc(100% - 890px);width:calc(100% - 890px);-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;float:right;overflow:hidden;background-color:#fff;padding:10px;box-shadow:0 0 0 1px #ddd}
.footer {display:block;overflow:hidden;padding:0;background:url("../image/pattern/pattern_bg1.png") top left repeat;background-size:132px 132px}
.copyright {padding:12px 10px;background:#10131E;color:#999}

완전감사~~^^

마운트님이 써주신거 그대로갖다가 붙여넣기했는데
넓이가 그대로인데 왜그런걸까요?

20번째줄부터 37번째줄까지 지우고 위 소스를 다시 붙이신거 맞으신가요?
혹시나 해서 다시 해보니 잘 됩니다.

넵 메인에 아이프레임때문에 안됫는지 메인 초기꺼로하니 되네요

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