In this tutorial I create simple button shortcode with three attributes: url target background Put this code in your functions.php file Wordpress function btn_big_shortcode( $atts, $content = null ){ $args = shortcode_atts( array( 'url' => '', 'target' => 'self', 'background' => '#F39D77', ), $atts ); $out = '<div class="btn-big"> <a style="background:'....