A series of options toggle Web
page??“focused helper tools on and off. One command, Show/Hide All Visual Aids, displays or conceals all of
them at once. The Visual Aids are:
n Hide All Visual Aids n Table Widths
n CSS Layout Backgrounds n Table Borders
n CSS Layout Box Model n Frame Borders
n CSS Layout Outlines n Image Maps
n AP Element Outlines n Invisible Elements
Checking for browser errors
With the wide range of browsers in the market today??”many with different rendering capabilities??”Web
designers need to keep a close eye on their page from start to finish. Dreamweaver offers two sets of debugging
utilities: Validate Markup and Check Browser Compatibility.
HTML is guided by an organization known commonly as the W3C, which is short for World Wide Web
Consortium. Each approved version of HTML corresponds to a carefully drafted specification. The Validate
Markup commands enable you to validate the current page, the current site, or selected pages against the
proper specification. The specification used is dictated by the
tag found at the top of the
HTML page. If no tag is available, Dreamweaver uses the settings specified in the Validator
category of Preferences. Any errors identified are displayed in the Results panel, complete with a short
description and line number of the problem; double-click any entry to jump to the problematic code.
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