I'm essentially a complete novice when it comes to CSS and I'm looking for a way to widen post sizes on my blog that has the Watson theme installed. The posts are quite narrow on the Watson theme and when I try to change the content width by typing in 900x on the CSS section of 'Customizing your blog', nothing changes.
Heres an example of what I have:
and heres an example of what I'd like:
Do I need a code? And if so, where would I put it? I'm very grateful for any help!
The blog I need help with is birthdaymagazine.co.uk.