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<?php

add_filter( 'body_class', 'extra_body_class' );
// Add specific CSS class by filter
function extra_body_class( $classes ) {
    if ( is_single( 'blank-title-and-content-page-template-in-genesis-theme' ))  // Set conditionals - example is using a slug
    	$classes[] = 'bare-bones';
    return $classes;
}