@media only screen and (min-width: 768px) {
.two-col-left-960 #main-sidebar-container { width: 100%; }
.two-col-left-960 #main-sidebar-container #main { width: 69%; }
.two-col-left-960 #main-sidebar-container #sidebar { width: 26%; }
}
<!-- WP Super Cache is installed but broken. The constant WPCACHEHOME must be set in the file wp-config.php and point at the WP Super Cache plugin directory. -->