Hi @dutchintouch,
If you need to use the shortcode in the page/post content simply place it in where you wish. If you need styling, you may enter the HTML edit mode for the page/post content and add some code like this:
<span style="color:red;font-size:1.2em;">[wpdts-date-time]</span>
In case you don’t see the shortcodes rendered in your title, content, etc. you may need to apply them by adding some filtering code in your child-themes function.php like this:
add_filter(‘wp_title’, ‘do_shortcode’, 10);
add_filter(‘the_title’, ‘do_shortcode’, 10);
add_filter('the_content', 'do_shortcode', 10);