Exploring different html markup and layouts, I stumbled upon this JSFiddle: http://jsfiddle.net/vLJAq/15/. I made some modifications to it, but one thing that puzzles me is why the green box disappears when the window width is reduced?
Here's the code for the green box:
.percent {
width:calc((100% - 400px)/1);
background: lightgreen;
border:1px solid grey;
}
Your insights would be appreciated. Thank you.