JSFiddle - React, Tailwind, and code Playground

http://stackoverflow.com/questions/7177675/css-100-width-div-not-taking-up-full-width-of-parent

HTML

<div id='grid-container'>
    This is a test
    <div id='grid'>This is also a test</div>
</div>

CSS

html, body{ 
    margin:0;
    padding:0;
    min-width: 1140px;
}
#grid-container{
    background-color: blue ;
}
#grid{
    width:1140px;
    margin:0px auto;
}