Fluid Baseline Grid
The Fluid Baseline Grid System is an HTML5 & CSS3 development kit that provides a solid foundation to quickly design websites with ease.

The FBG system was built with typographic standards in mind and combines principals of fluid-column layouts, baseline grids and mobile-first responsive design into a resolution independent and device agnostic framework. It is packed with CSS normalization, beautiful typographic standards, corrected bugs, common browser inconsistencies and improved usability. You can finally have your cake and eat it too, all while making awesome websites.

Fluid Columns

The FBG system facilitates creativity by providing a framework for composition. Grid systems create visual rhythm and structural balance to enhance the experience with predictable patterns.

FBG is defaulted to a minimal 3-column folding grid, which is easy to work with and divided into equal portions, 31.333% wide with 2% wide gutters between columns. This is a starting point, not a standard, so we encourage you to change the columns as your project requires.

Baseline Grid

The typography of FBG is designed to establish a typographic hierarchy that improves readability and creates harmony within the text. Measure, leading, vertical rhythm, emphasis and scale are something we obsess about.

The primary font is Georgia, but the font stack can be easily changed. Paragraphs are set at a 16px base with 150% (24px) line height to improve readability and improve the appearance of text. We encourage you to change the base font size and line height to suit your needs.

Responsive Design

The FBG is designed for mobile first. CSS styles are scaled up from the minimum instead of scaled down from the maximum through the use of media queries. IE6/7/8 do not support media queries, so Respond.js is used to polyfill.

Common Break Points

Normalize CSS

Reset vs. Normalize? Most web designers use either the Eric Meyer Reset or the YUI Reset, but a reset doesn't fix cross-browser inconsistencies or preserve useful defaults. Normalizing CSS allows for the preservation of useful defaults, while correcting bugs, fixing common browser inconsistencies and improving usability. Many thanks to Nicolas Gallagher and Jonathan Neal for researching the differences between default browser styles in order to precisely target only the styles that need normalizing.

File Structure

The file structure for FBG is straight-forward and contains only the minimum files to get started.


The code for FBG is simple, lightweight, and non-obtrusive, which allows it to be easily modified for each project. The default is based on a 3-column folding layout. 1 column for mobile devices, 2 columns for tablets and 3 columns for desktops and beyond. The only necessary provision is to add either class="g1", class="g2" or class="g3" to each <div> you would like to make a column.

	<div class="g2">
	<div class="g3">
	<div class="g1">


The FBG download is an 18kb zip file containing the base framework to get started on any web project. View Project on Github

Download FBG.v.1.0.0



Feedback, questions or thoughts about FBG? Email us and we will get back to you as soon as possible.

This site, its code, design and FBG are released into public domain and are free to use under Unlicense.

Browser & Device Support

The FBG System is cross-browser compatible and device independent: Firefox 3.5+, Opera 11+, Chrome 11+, Safari 5+ and Internet Explorer 6+.



Many thanks to Richard Rutter, Ethan Marcotte, Paul Irish, Remy Sharp, Faruk AteĊŸ, Dan Cederholm, Nicolas Gallagher and Eric Meyer.

Other acknowledgement, credit, ideas and inspiration for the Fluid Baseline Grid system include:

HTML5 IE Enabling Script
CSS Reset
Sub-Pixel Problems in CSS
8 Simple Ways to Improve Typography In Your Designs
The Elements of Typographic Style Applied to the Web
More Meaningful Typography
Modular Scale
Text size in ems
Unitless line-heights
Compose to a Vertical Rhythm
Setting Type on the Web to a Baseline Grid
CSS with vertical rhythm
Baseline Rhythm Calculator
Cross-browser kerning-pairs & ligatures
Use the Best Available Ampersand
Fluid Grids
960 Grid System
Fluid Grid Calculator
Variable Grid System
Responsive Design
Responsive Web Design
Mobile First
Fluid Images
Maximum touch-icon support
Mobile Viewport
Asynchronous Google Analytics snippet
Micro Clearfix hack
Best Practices for Speeding Up Your Web Site