Add featured box inside the content

function make_yellowbox($atts, $content = null) {
return '<p style="background: none repeat scroll 0 0 #ff9; clear: both; margin-bottom: 18px; overflow: hidden; border: 1px solid #e5e597; padding: 13px;">' . do_shortcode($content) . '</p>';
}
add_shortcode('yellowbox', 'make_yellowbox');

[yellowbox]Your featured content here[/yellowbox]

Your featured content here