Some text is invisible in the **How to Format** help block because of a bad combination of text and background color:

![](https://i.sstatic.net/59sXI.png)

That's meant to read

> ► backtick escapes `` `like _so_` ``

but the backquoted portion is nearly invisible (white text on light gray background).

How to reproduce the bug:

 1. Go to the [Ask Question](http://stackapps.com/questions/ask) page.
 2. Click in the body textarea. The box with the invisible text should appear.