This is an example site to show how you could use Pure CSS griding system to layout your site.
.pure-g-r
This takes up half the row size
This one takes up the other half
.pure-g-r
This one takes 1/3rd of the Column Size
This one takes 1/3rd of the Column Size
This one takes 1/3rd of the Column Size
.pure-g-r
This greedy fuck takes the whole column width