The <ad:adTarget> uses the Ad Service to send an ad query to the content management system. Unlike the <ph:placeholder> tag, the query in the <ad:adTarget> tag does not compete with other queries in an ad placeholder.
Use this tag if you need to make sure that a given ad displays to customers in a specific location. Depending on how narrowly you construct the query, you might have to remove or modify this tag when you want to display a different ad.
If the ad query returns more than one ad, the Ad Service uses the adWeight attribute of each ad to determine which ad to display.
<tagName attribute="value" />
query
Required (String) - The search query to execute based on the query syntax described in Building Content Queries with Expressions.
height
Optional (int) - The optional height (in pixels) of the rendered content.
width
Optional (int) - The optional width (in pixels) of the rendered
content.
The following example picks one of the ads in the ad group "Car" and renders it in a space measuring 200 x 400 pixels.
<ad:adTarget query="group == 'Car'" width="400" height="200" />