i've built my own grid system which worked just fine... until now.
As you can see in my screenshots below, chrome changes my fixed border and content sizes to some weird floating values.

Does anybody know why this happens or can explain to me how I could prevent it?

Before Zoom:

![Before Zoom](https://i.stack.imgur.com/HUqb2.png)

After Zoom:

![After Zoom](https://i.stack.imgur.com/gNtEw.png)

Cheers!