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HTML defines all the different form elements and form controls. As a result, when you place these elements inside <form> tags in an HTML page, the browser automatically knows what they are and how they are supposed to behave; all you need to do is tell the browser what to do with the information gathered.
To make the creation of forms as easy as possible, Expression Web 4 provides all the available form controls in one convenient location: the Toolbox panel (see Figure 20.1). From here, you can drag and drop any of the form controls directly into either Code view or Design view without writing a single line of code.