I am using the default registration page on my Dnn 6.1.5 site. Right above the password section where is states "Enter a password." I replaced that with some different wording. Now it is all bold or strong, or however one wants to call it, with a a thicker border on the bottom of it. Where would I go to look at the css for the registration page so I can see how to I can change this. so the words will be of normal weight and move the bottom border to be on top but not so thick. 

To look at what I mean you can go to https://esbirt.org and click on the registration link to look at it.

Thanks for your help in advanced!

out of all the things that I have tried...the simplest thing to do was the answer!!  Thanks Sebastian, You Rock!