.canvas-preview.content-box{clear:both;margin:20px 0;position:relative}.canvas-preview.content-box:before,.canvas-preview.content-box:after{content:"";line-height:0;display:table}.canvas-preview.content-box:after{clear:both}.canvas-preview.pad-box-mini{padding:10px}.canvas-preview.border{border:0 solid #e8eaec}.canvas-preview.border-trbl{border-width:1px}.canvas-preview.border-rbl{border-width:medium 1px 1px;border-top-style:none;border-top-color:currentColor}.canvas-preview.border-tbl{border-width:1px medium 1px 1px;border-right-style:none;border-right-color:currentColor}.canvas-preview.border-bl{border-bottom-width:1px;border-left-width:1px}.canvas-preview.border-tl{border-top-width:1px;border-left-width:1px}.canvas-preview.border-b{border-bottom-width:1px}.canvas-preview.border-t{border-top-width:1px}.canvas-preview.border-round{border-radius:4px}.canvas-preview.border-round-b{border-bottom-right-radius:4px;border-bottom-left-radius:4px}.canvas-preview.border-round-t{border-top-left-radius:4px;border-top-right-radius:4px}.canvas-preview.border-round-tl{border-top-left-radius:4px}