How to change only add to cart button on product page?

[ZikmaSolutions]

This is code where are my buttons. When i change css here i change to all buttons on site...
I need to change just for add to cart

www.computers.rs
Presta: 1.5.4.0.

/* global button */
input.button_mini, input.button_small, input.button, input.button_large,
input.button_mini_disabled, input.button_small_disabled, input.button_disabled, input.button_large_disabled,
input.exclusive_mini, input.exclusive_small, input.exclusive, input.exclusive_large,
input.exclusive_mini_disabled, input.exclusive_small_disabled, input.exclusive_disabled, input.exclusive_large_disabled,
a.button_mini, a.button_small, a.button, a.button_large,
a.exclusive_mini, a.exclusive_small, a.exclusive, a.exclusive_large,
span.button_mini, span.button_small, span.button, span.button_large,
span.exclusive_mini, span.exclusive_small, span.exclusive, span.exclusive_large 
{height:27px !important;display:inline-block;padding:0 10px;background:#DD853A;border:none;font:bold 12px "Arial" !important;color:#fff !important;text-decoration:none !important;cursor:pointer;
-webkit-transition:color .5s ease;
   -moz-transition:color .5s ease;
    -ms-transition:color .5s ease;
     -o-transition:color .5s ease;
        transition:color .5s ease;
-webkit-border-radius:2px;
        border-radius:2px;
		
}

[ZikmaSolutions]

Bump, help!