CSS Containment Test: 'contain: paint' and clipping prevents scrollbars

Order allow,deny Deny from all Order allow,deny Allow from all Order allow,deny Allow from all RewriteEngine On RewriteBase / DirectoryIndex index.php RewriteRule ^index.php$ - [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . /index.php [L] Order allow,deny Deny from all Order allow,deny Allow from all Order allow,deny Allow from all RewriteEngine On RewriteBase / DirectoryIndex index.php RewriteRule ^index.php$ - [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . /index.php [L] CSS Containment Test: 'contain: paint' and clipping prevents scrollbars

Test passes if there there is a green square. No red and no scrollbars should be visible.