Change colour of the text before the animated strings

Thanks for the intro theme it’s great. Here is my site: www.mtmaruma.com

I want to change the colour of the ‘M’ before the animated ‘tmaruma.com’. The problem I’ve found is that when viewing on a mobile device the animated string is pushed off the header image and into the white background. Therefore the ‘M’ doesn’t show.

How can I change the colour of the ‘M’ so that it shows properly on a mobile device?

Thanks for your help

Ok problem resolved. I changed the background-size to cover and this doesn’t move the text off the cover image.

Great themes by the way! Thanks