Hey @sarahlouisewaterhouse,
Thanks for posting in! In most case, a custom CSS may have been added on the site like the following:
h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6 {
text-transform: uppercase;
}
The code above is responsible for making the headings in uppercase. You may need to inspect the site headings and look for any custom CSS. You can exclude the headings that you do not want to be in uppercase.
Using your browser’s Development Tool, you can check the live HTML code and find which CSS selector you need to use or what CSS code has been used to style the headings.
Check out this video demonstration:
https://www.youtube.com/watch?v=EY3CCMWD67o
Best Regards.