"

From 2013.igem.org

.outerx{ width:50%; margin-left:25%; border:1px solid #000; background:#fff url() repeat-y left top; }

.innerx{ background:transparent url() repeat-y right top; width:100%; padding:1em 0; } .outerx p{padding:0 20px;margin:0 0 1em 0}