Make site header sticky on scroll

Makes the site header section sticky (stay in place) on vertical scroll.

If looking for more advanced functionality, consider the official plugins Top Bar For WooCommerce and Sticky Cart for WooCommerce.

add_action( 'wp_enqueue_scripts', function() {

	// Uncomment to disable in Elementor visual editor
	//if( \Elementor\Plugin::$instance->preview->is_preview_mode() ) { return; }

	wp_enqueue_script( 'jquery' );

	wp_add_inline_script( 'jquery', "

		jQuery( function( $ ) {

			var header_selector = 'header.site-header';

			$( window ).on( 'load resize scroll', function() {
				var header_height = $( header_selector ).outerHeight();

				// Uncomment to make sticky after initial scrollby
				//if( window.pageYOffset <= header_height ) { return; }

				var admin_bar_height = $( '#wpadminbar' ).outerHeight();
				admin_bar_height = $( '#wpadminbar' ).is( ':visible' )
					&& $( '#wpadminbar' ).css( 'position' ) === 'fixed'
					? admin_bar_height : 0;
				$( header_selector )
					.css( 'position', 'fixed' )
					.css( 'top', admin_bar_height )
					.css( 'left', 0 )
					.css( 'width', '100%' )
					.css( 'z-index', '1000' );
				$( 'main' )
					.css( 'margin-top', header_height + admin_bar_height );

			} );

		} );

	" );

} );

Instructions for Make site header sticky on scroll

  1. Log into a staging or locally hosted clone of your site.
  2. Install and activate Code Snippets plugin.
  3. WP Admin > Snippets > Add New
  4. Copy and paste the code from the section above.
  5. Check to ensure formatting came over properly.
  6. Customize the code as desired.
  7. Add a meaningful title.
  8. Select whether to run on front-end or back-end (or both).
  9. Click “Save and Activate”.
  10. Test your site to ensure it works.
  11. Disable if any problems, or recover.
  12. Repeat for live environment.

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License

All code snippets are licensed GPLv2 (or later) matching WordPress licensing.

Except when otherwise stated in writing the copyright holders and/or other parties provide the program as-is without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.

Disclaimer of warranty
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