<div class="margin"><table class="table><tr><td class="td"><a><img></a></td><td class="td"><a><img></a></td></tr></div>

CSS
.margin {margin-left: 20px; margin-right: 20px; margin-bottom: 15px; margin-top: 15px; background: white; color: grey;}
.td {width: 50%; height: 50%;}
пробуй