Typically, you click an element to select it. If an element is invisible, you may need to make it visible before you can select it. See About invisible elements .
Some objects appear on the page in a place other than where their code is inserted.
For example, a layer can be anywhere on the page, but the code defining the layer is in a fixed location. Dreamweaver displays markers in the Document window to show the location of the code for invisible elements. The tag selector always shows the tags that surround the current selection or insertion point location.