Make text more visible on selection

Before: 

![before](https://f.cloud.github.com/assets/1223565/356203/c4ec57b0-a0fd-11e2-906a-224369e02e0f.png)

After:

![after](https://f.cloud.github.com/assets/1223565/356204/c63bf17a-a0fd-11e2-8fdf-610001cd883c.png)

@nimbupani I didn't know what css minification tool you used, so you might want to redo the `main.min.css`