i know this is not php, but its related..
how can i change my css mouseover styles in the middle of a page? (without it being in the <head> tags)
I am not expert on this. But I think you may do inline style, which will overwrite those within header.
To further paul088's post, inline is used within the tag itself: <a href="link" style="suave">text</a> Change that which needs to be changed, obviously.
