#menu-main a{font-size: 15px}
#menu-main ul li a{font-size: 13px !important}
body, p, ul#twitter_update_list li, .crumb_navigation ul a, .footer p, .widget ul li a{font-size: 15px}
@media only screen and (min-width: 769px){
.woocommerce.columns-4 ul.products li.product{width:22.1% !important}
}
	<?php 
if ( ! isset( $content_width ) )
    $content_width = 1920;
?>