[Theme Horse Support Team]

Hi Heidi,

If you are unable to create a child theme then while updating to new version all your customized code will be lost. So you need to customize code manually each and every time while updating to new version.
Here is an example how to create a child theme or find in forum. We have replied many times about the child theme. This is just an example to create a child theme.

To add h1 style you better use below code

echo '<h1>'.ambition_header_title() .'</h1';

Hope this may help you
Thank you!