What is Google Shopping CSS?

CSS stands for Comparison Shopping Services and affects the main search on the Google homepage.

However, in order to use its own price comparison in an EU-compliant (i.e. competition-neutral) manner, Google retains around 20% of the maximum CPC bid as a margin. This will always reduce your bids by about 20% if you stay with your google Shopping campaigns on Google Shopping Europe. If you use a CSS partner like UnitedAds for your campaigns, the margin is completely eliminated.