Read With Formatting

Hello, I am using the font, tahoma, on my site. I am using H3 tags because h1 tags are to bulky and awkward no matter what size I reduce them to. Is there a way around this? Using a different font or CSS?

are you using any wysiwyg editor like frontpage or dreamweaver, also this depends on default browser behaviour.

h1 {font-size: 12px;}
Change 12px to whatever size you like or use % or em - have a look here for css font-size usage