Best way to go about changing the font size of a title that is uneditable using CSS?

Site URL: https://roxeesalon.squarespace.com/

Web pass: a

I have a title that I want to increase the size of, but the specific section template I'm using does not allow for further customization for its size.

(See first image and see first section titled "Our Services" on the website link)

I want it to look like the title from the second image.

If I target a specific ID, my concern is that SquareSpace would change these ID names whenever, and my website would break.

If you want to change the size of a specific title, you'll most likely have to use a Block ID, the only alternative is just targeting the class in the page specific header injection but that'll only work if there is only one of that class on the page. I would also say that I have not experienced SQS changing the Block IDs at any point, over the last 7+ years.

From looking at your website it appears that you've achieved this already? Both titles are the same size.

It's good to know that IDs don't really change.

I sorta winged my way to the result I wanted. (I created a new section entirely with the "Our specialty" and popped it on top of the photos section. :J