Edit file File name : admin.js Content :( function ( $ ) { // We could either be in wp-admin/widgets.php or the customizer. var $container = $( '#customize-controls' ); if ( ! $container.length ) { $container = $( '#wpbody' ); } $container.on( 'change', '.milestone-type', function () { var $messageWrapper = $( this ).parent().find( '.milestone-message-wrapper' ); $( this ).find( 'input[type="radio"]:checked' ).val() === 'since' ? $messageWrapper.hide() : $messageWrapper.show(); } ); function triggerChange() { $container.find( '.milestone-type' ).trigger( 'change' ); } // Used when adding widget via customizer or saving settings. $( document ).on( 'widget-added widget-updated', function () { triggerChange(); } ); triggerChange(); } )( jQuery ); Save