Fix issue for elements with fixed position

**Original post :** 
http://stackoverflow.com/q/23915033/1238019

**Description :**
When an element has `position: fixed`, applying `transform: translate(0px)` to its parent make its position to be overriden. 

**Example :**
(Extract from the SO post)
- Open [this fiddle](http://jsfiddle.net/NCyL4/)
- Scroll : the <kbd>Menu</kbd> button stay in place (because its `position: fixed`)
- Click on <kbd>Menu</kbd> (button disappears)
- Close the opened menu (button reappears)
- Scroll : **the <kbd>Menu</kbd> lost its fixed position**

**Fix :**
Change `transform: translate(0px)` by `transform: none` to avoid the override.