If you view the page in the browser, it will not have that background color.
Dreamweaver is highlighting the form on the page using the #CCFFFF color, this is how Dreamweaver lets you know where the form is on your page.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.