First website I created in 1999 used a Mondrian grid. FoundObjects.com had SO MUCH information we needed a grid. Since we sold artist inspired gifts and cool stuff such as Magnetic Poetry Kit I worked hard to write the HTML to create a Mondrian grid manually.
There are "new designer" mistakes such as too many fonts and over selling the click I wouldn't make today, but maybe it was worth figuring out how to write the html to do those lines (took weeks and was named in my divorce lol).
I'm not alone in love for Mondrian as this link shows.
Via Martin (Marty) Smith