Gridpak - The Responsive grid generator.
BluCSS. Less Framework 4. Every layout in Less Framework is based on a single grid, composed of 68 px columns with 24 px gutters. The only measures that change from layout to layout are the amount of columns and the width of the outer margins. The three sets of typography presets are aligned to a 24 px baseline grid; one is based on 16 px body text, one on 17 px, and one on 18 px. Both sets contain several harmonious type sizes calculated using the Golden Ratio. Technically The idea is to first code the Default Layout (992 px), and then use CSS3 media queries to code several child layouts: 768, 480, and 320 px. The Default Layout will be served to any browsers that do not support media queries, whereas the child layouts will be served, as appropriate, to browsers that do.
They will also inherit all styles given to the Default Layout, so coding them is very fast. Philosophically The goal of Less Framework is to make building websites with multiple layouts efficient, and to make the layouts feel consistent. Golden Grid System. GGS was my next step after Less Framework. Instead of a fixed-width grid, it used a fully fluid-width one, without even a maximum width. The resources it was published with are still available on GitHub. The idea was to take a 18-column grid, use the outermost columns as margins, and use the remaining 16 to lay elements out. On smaller screens the 16 columns could be folded into 8, 4 and 2. This behaviour was inspired by Massimo Vignelli's Unigrid system.
While the grid's columns were fluid — proportional to the screen's width — the gutters (spaces between the columns) were proportional to the font-size being used. GGS also contained a set of typographic presets, strictly to a baseline grid. Correctly setting all of these measurements is difficult, of course. When published, GGS gained a lot of attention, as the web design community was searching ways to work with fluid-width grids, which have always been troublesome, running counter to many graphic design principles. 960 Grid System.
SimpleGrid. The 1140px CSS Grid System · Fluid down to mobile. Columnal | A responsive CSS grid system helping desktop and mobile browsers play nicely together.