Simple Catch – a few questions

Hi Sakin, First of all, let me say that I really love your themes and use them often. I am in the process of designing a site - www.spiritofyoga.co.uk and have a few questions: 1. How do I decrease the size of the header? I have used this code in the custom css and it does not seem to work h1#site-title a img { max-height: 100px; max-width: 600px; } 2. How do I change the colour and font size of the header text? 3. Is it possible to change the colour of the navigation menu (Home, Iyengar etc) and the highlights when a menu item is selected. I would like it to be this colour #4fb743 Thanks a lot Poornima