Styling Event List

Hello,
I’m hoping someone can help as I am tearing my hair out! I had my events pages all nicely styled, but I updated the plugin and everything has gone haywire. So, I’ve started re-styling everything, but some things simply won’t change.
Example 1:
I want to add a bit of padding to the h2 heading in the events list and I’ve tried multiple, multiple versions of the css, but nothing is working. I think it should be:

h2.fusion-responsive-typography-calculated {padding: 50px 0 0 0;}

I even tried adding !important, but that didn’t help either. Can anyone tell me what I’m doing wrong?

Example 2:
I also have styling on the categories list, but when I inspect the page via the browser, it shows the correct line of css coding, but is showing something completely different to what is actually in the style sheet at that line.

I have done all the usual things of clearing cache, using different browsers, etc, but it’s almost as if the style sheet is working for some things, but not for others.

Any advice would be most appreciated as I was due to launch my new site this week and that has now been ruined.

The page I need help with: [log in to see the link]