I have read through some similar posts on here and I have to admit, I just can't seem to get the advice to work on the site I am building.... so I am hoping I can get specific advice to my predicament and code specific to my theme (arthemia free) and site.
The site is now at http://staging.madwoman.com.au (note it's work-in-progress!)
I have established a default CSS that I am happy with and then created a green.css for the Category Archive page for category-3 (aka Single Volunteers) and a white.css for the Category Archive for category-5 (no posts in this one yet.
However, I cannot work out the steps to have each individual post (ie single.php) in Category 3 use the green.css.
How can I make each post in Category 3 use green.css and those in Category 5 use white.css?
I am doing this as a pro bono job, so I am so grateful for your assistance!!