How do I remove the theme effect from my page.

Hi,

I m designing a page http://www.ourshiaislam.com/nauhay/ and I have written the whole code for it. which works fine, when I wrote in dreamweaver. However the problem is that when I enter that code in wordpress, it adds some hover and color effect to the texts. I m using Swift premium version and I made removed the
a{color:#005fa1;text-decoration:none} and a:hover{color:#F00}from the stylsheet.css(as seen from Inspect Element) and also wrote more specific code(so that no class matches with the themes code) however the effect is not going. And also When you click on DOWNLOAD NOW button, it takes you back to the home page though I have embeded a different link there(which works when I run it speratly in my browser)

Thanks in advance.

I m pasting the link to my code here for you to have a look(it will work fine if you run it sepratly)

http://snipsave.com/user/profile/sayedtaqui#3563