[xhilr8]

I'm stuck here trying to change my H1, H2 and H3 font sizes. I went into skin1.css and edited the lines:

}
H1 {
FONT-SIZE: 15px;
}
H2 {
FONT-SIZE: 13px;
}
H3 {
FONT-SIZE: 11px;

But it doesn't seem to change the font sizes at all...I know my website is using this CSS file because changing the body text size works, but just not the H1/h2/h3 tags.
By the way, I'm trying to edit the H1 tags when they are used in the product descriptions for SEO purposes. At the moment, when I use the H1 tags in the product descriptions, the font size is too big.