.cmall-tabs {  }
.cmall-tabs .nav-tabs.nav-justified > li {display: table-cell;}

.product-detail { margin: 10px; }
.product-detail .der {}
.product-detail .der h3 { font-size: 20px; margin-bottom: 10px; padding-bottom: 0; }
.product-detail .der th,
.product-detail .der td { display: block; padding: 10px; font-size: 12px; }
.product-detail .der td { color: #888; }