Yousaf CRM – VisitYousaf

add_filter( 'style_loader_tag', 'async_all_css', 10, 2 ); function async_all_css( $html, $handle ) { if ( is_admin() ) return $html; return str_replace( "rel='stylesheet'", "rel='preload' as='style' onload=\"this.onload=null;this.rel='stylesheet'\"", $html ); }