width: 100% -> 300%, left: -100% 수정

src/main/webapp/ux/mo/css/layout_m.css

@@ -465,7 +465,8 @@
 .pd_detail > .inner.wide{padding-left:0!important; padding-right:0!important; padding-bottom:0;}
 .pd_detail .movbox {position: relative;height: 0;padding-top: 100%;padding-bottom:50.25%;overflow: hidden;transition: all 300ms ease;transform: scale(1);}
 .pd_detail .movbox #prodMovBtn{background: rgb(246 55 55 / 0%);  position: absolute;top: 0;left: 0;width: 100%;height: 100%;border: none;color: transparent;font-size: 0.1rem;z-index: 2;}
-.pd_detail .movbox iframe{position: absolute;left: 0;right: 0;top: 0;bottom: 0;width: 100%;height: 100%;z-index: 1;}
+/* .pd_detail .movbox iframe{position: absolute;left: 0;right: 0;top: 0;bottom: 0;width: 100%;height: 100%;z-index: 1;} */
+.pd_detail .movbox iframe{position: absolute;left: 0;right: 0;top: 0;bottom: 0;width: 300%;height: 100%;z-index: 1;left:-100%}
 .pd_detail .thumb_box{position: relative;}
 .pd_detail .thumb_box .thumb_list{position:relative;}
 .pd_detail .thumb_box .thumb_list .thumb{position:relative; width:100%; padding-bottom: 150%;; background-color:#f5f5f5; overflow: hidden;}

src/main/webapp/ux/pc/css/layout.css

@@ -2507,7 +2507,8 @@ ul.maintabs li [class^='box_depth'] {display:none; position:absolute; left:100%;
 	.pd_detail .thumb img,
 	.pd_detail .thumb video {position:absolute; left:0; top:50%; width:100%; transform:translateY(-50%) ; z-index:2;}
 	.pd_detail .movbox {position: relative;height: 0;padding-top: 100%;padding-bottom:50.25%;overflow: hidden;transition: all 300ms ease;transform: scale(1);}
-	.pd_detail .movbox iframe{position: absolute;left: 0;right: 0;top: 0;bottom: 0;width: 100%;height: 100%;z-index: 1;pointer-events:none;left: -83.45%;width: 185%;}
+	/* .pd_detail .movbox iframe{position: absolute;left: 0;right: 0;top: 0;bottom: 0;width: 100%;height: 100%;z-index: 1;pointer-events:none; left: -83.45%;width: 185%;} */
+	.pd_detail .movbox iframe{position: absolute;left: 0;right: 0;top: 0;bottom: 0;width: 300%;height: 100%;z-index: 1;pointer-events:none; left: -100%;}
 	.pd_detail .movbox iframe[src*="youtu"] {left:0; width: 100%;}
 	.pd_detail .btn_popup {display:inline-block; padding:0px; box-sizing:border-box;}
 	.pd_detail .btn_popup span {color:#888; font-size:12px; font-weight:200; border-bottom:1px solid #888;}