This CSS fix should go in a custom theme's CSS rather than the seven theme's ...

This CSS fix should go in a custom theme's CSS rather than the seven theme's which is core.

anywho, It is a text-transform set to uppercase, which basically converts your label to uppercase. :-) Attaching a very small and simple patch for the same.

Some info if needed: http://www.w3schools.com/cssref/pr_text_text-transform.asp

Cheers