How to prevent blur from CSS transform?

I have some issues using CSS's zooming capability. Whenever I zoom in on an element it gets a little blurry even though it's not an image, just a simple text element.

I'm using Hover.css's code to make grow a div inside my code. But as you can see at Hover.css if you hover your mouse on 'Grow' it gets a bit blurry too.

http://ianlunn.github.io/Hover/

CSS Code:

.hvr-grow {
  display: inline-block;
  vertical-align: middle;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
  box-shadow: 0 0 1px rgba(0, 0, 0, 0);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  -moz-osx-font-smoothing: grayscale;
  -webkit-transition-duration: 0.3s;
  transition-duration: 0.3s;
  -webkit-transition-property: transform;
  transition-property: transform;
}
.hvr-grow:hover, .hvr-grow:focus, .hvr-grow:active {
  -webkit-transform: scale(1.1);
  transform: scale(1.1);
}

How is that possible to grow the element like this above example, but make everything sharp as before?