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Start your free trialAmritpal Singh
838 PointsWhat is Grid System in CSS?
I want to know What is Grid System, Why is it used and How to decide the number of columns?
1 Answer
Dave McFarland
Treehouse TeacherA grid system provides a systematic way to organize web pages into rows and columns. Many grid systems work in units of 12 -- that doesn't mean you'll use 12 columns on a page, but that you can create columns that work in multiples of 2, 3, 4, or 6. So if you wanted 2 equal width columns, you could add two 6-unit wide <div>
tags. Or you might want one wide, and two thinner columns, so you could have one 6-unit wide column and two 3-unit columns.
To learn more you should check out the Grid Layout section of the new CSS Layout Techniques course http://teamtreehouse.com/library/css-layout-techniques
You can also see how 2 CSS Frameworks -- Twitter Bootstrap and Foundation -- implement grid systems in our framework basics course: http://teamtreehouse.com/library/framework-basics