Automatic CSS syntax checker
When entering custom CSS through the CSS editor in the admin interface, it would be nice for CSS syntax to be checked on the fly before saving. It's pretty easy to make a syntax error and then beat your head against a desk thinking you are doing something wrong all because of a misplaced semi-colon or curly brace or wrong property name.
Alex Sirota commented
Yes of course. It works great. But it's not a good experience for new users. Could it be invoked during a save somehow? I have seen many people damage their CSS and not realize the checker is there. Maybe a better UI?
Alex, there is a "Validate customized CSS" option on the CSS editor screen. Have you tried using that? For more information, see https://gethelp.wildapricot.com/en/articles/438#entering