You can edit code by hand, and Dreamweaver does not overwrite those changes. If a change is made that appears to be wrong, however, Dreamweaver highlights it to call the code to your attention. Sometimes you might need to adjust the code by hand, as demonstrated in the following steps.
In the training.html document, place the insertion point anywhere within the form and click the <table> tag in the Tag selector. The nested table is now outlined with a thick black line to indicate that it is selected.
Switch to Split view. Find the beginning of the table in the code. It should appear as follows:
Because the table is selected in the ...
<table width="90%" border="0" align="center" cellpadding="0" cellspacing="10">