How to target a specific screen size using @media media query?

Question

I am new to responsive design, I am toying with twitter bootstrap responsive.css now. And I am encountering some trouble with my project.

The trouble is, my left column

Answer 1

You need to use the row-fluid class (instead of the row class) in order to benefit from the responsive part of Bootstrap. Read more at http://twitter.github.com/bootstrap/scaffolding.html#fluidGridSystem.

So your basic layout should be:

  
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