You can request access to CSS customization by contacting the admins, but support was slow last I checked.
How would i go about contacting the admins?
As explained in Contact Us. There's a link in the footer of every page.
Alright, but how would i go about asking?
Do i just say "i need the css"
Yes, and also explain why you need it. The dev team will want to know so they can improve the theme editor.
Alright.
On my humble opinion, custom CSS should be available as default.
I’ve seen enough good pages without custom CSS to say that, most of the time, it comes down to artistic skill.
Custom CSS can also be used maliciously.
How?
For example by hiding certain elements, changing/adding text, misleading people to click where they normally shouldn't, and so on.
I see. I could figure out to where all these exploits could lead.
On this case, it's better for people to stick with the standard rules for their pages creation.