Snippet: Add class to first post in the loop

Add following snippet to “functions.php”


add_filter( 'post_class', 'first_post_class' );
function first_post_class( $classes ) {
    global $wp_query;
    if( 0 == $wp_query->current_post )
        $classes[] = 'first-post';
        return $classes;


It will add “first-post” class to first post of the every post loop.

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