A whitelist is a great way to filter out many unwanted classes added in your theme. You can create a whitelist of the terms to include in body_class.
Instructions: Add the following code to the functions.php file of your WordPress theme to set up whitelist body_class.
add_filter('body_class', 'wps_body_class', 10, 2);
function wps_body_class($wp_classes, $extra_classes)
{
// List of classes allowed
$whitelist = array('portfolio', 'home', 'error404');
$wp_classes = array_intersect($wp_classes, $whitelist);
return array_merge($wp_classes, (array) $extra_classes);
}
You may also enjoy adding custom body_class using wp_is_mobile.
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