Is it possible to “snap to pixel” after a CSS translate?

Question

I created a modal box and vertically centred it using a technique Chris Coyer mentioned. The only problem I\'ve found with it so far is that sometimes the box is offset by half

Answer 1

I always use perspective: 1px;, for example:

{
  margin: 50% 0 0 50%;
  perspective: 1px;
 transform: translate(-50%, -50%);
}