Category Box Titles Font Size

http://www.apollobuildingsupplies.co.uk/

I wanted to change my category titles so all of them were font 1.4em i did this but for some reason the 2 on the right went much larger than 1.4 and the search title didnt move. I've played about with the CSS on the web tools on Firefox but just cant get it any pointers??

i think the problem is here

h3.leftBoxHeading, h3.leftBoxHeading a, h3.rightBoxHeading, h3.rightBoxHeading a {stylesheet.css (line 547)
color:#FFFFFF;
font-size:1.4em;
}

you have already defined font size for left and right side boxes, this one just overwrite the other . remove this font size and see if that fix the problem

also for your search box heading . add the following to end of your stylesheet.css and see if this helps.

#searchHeading label {
font-size:1.4em;
}