The size property is based on the default font size, which can also vary from browser to browser. The best bet for consistency is to use the css width attribute instead of depending on the size parameter of the input field.
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.