Enqueue Google Fonts

/**
 * Enqueue Google Fonts
 */
 
function google_fonts() {
    wp_register_style( 'OpenSans', '//fonts.googleapis.com/css?family=Open+Sans:400,600,700,800' );
    wp_enqueue_style( 'OpenSans' );
}
add_action( 'wp_print_styles', 'google_fonts' );