Baseliner

Adds a horizontal and/or vertical lines on top of any website. The Baseliner extension adds a fully customisable CSS layer on top of any website to help you align your design and ensure the grid is in place. -------------------- The best place for support is not in the reviews section below, but on the Baseliner GitHub repo: https://github.com/jpedroribeiro/Baseliner/issues Check out full set of features and how to contribute on our GitHub page: https://github.com/jpedroribeiro/Baseliner

Screenshots from Chrome Web Store

Screenshots from Mozilla Add-ons