Need Some CSS help to put a button with theme css

hi
i add a code in my wp theme for next and previous button but the button not working with CSS colors how to attach them now its looking link

funnyvibez.com/to/29/2/ can see in this link

and how i want it i makea image you can see

http://i.imgur.com/HCDiJEF.jpg

help me how can i do this to fix that bit issue

 

Create a class for the button, and do something like this:

a.navbutton {
text-decoration: none;
background: red;
color: white;
display: block;
width: 5em;
height: 1em;
}

Code (markup):

should work (this is just an example, it won't look exactly like the buttons you have, for that you have to adjust the size and color) - also, this assumes that the buttons are actually links to begin with.