Hi @davidflanagan 

Sorry, I should mention this!

Please check below screenshot from HD device. 

The two borders seems not with the same width. It's hard to ignore that for me.
I am not quite sure why the left border has 2px in black and right one has 1px in grey and 1px in black. However, my solution can fix this problem across all other devices, although it might have side effect that it has leftmost border in the end.


(portrait)
![borderwith02rem](https://f.cloud.github.com/assets/1499206/906699/79487bf0-fccd-11e2-9db3-a561262e156a.png)
(landscape)
![landscape02remborder](https://f.cloud.github.com/assets/1499206/906726/7d9be886-fcd2-11e2-9365-566ece2fab81.png)


enlarge
![border](https://f.cloud.github.com/assets/1499206/906717/92c78874-fcd1-11e2-80f7-63b7989f8cd5.png)

after
![borderwith03rem](https://f.cloud.github.com/assets/1499206/906723/4731363e-fcd2-11e2-8b80-1d89bc99063c.png)
(landscape)
![landscapewith03remborder](https://f.cloud.github.com/assets/1499206/906729/b97beaf4-fcd2-11e2-9a02-6c49ccacc3e0.png)