Fixing Sub-Pixel rounding issue in a CSS Fluid Grid

Question

I\'m trying to create a fluid CSS grid, it works in Firefox and IE8+ but NOT in Safari/Chrome/Opera where the sub-pixel rounding issue becomes visible:

http://jsfidd

Answer 1

It sucks there isn't a nice option for this that will round pixels up and down for each browser, but in lieu of that, I usually do:

.nested:last-child {
    float: right;
}
.nested:first-child {
    float: left;
}

This will float the last child to the right so the px unalignment isn't obvious, but if it's the only element (say a div that is 33% width), then it will continue to float left.