How can i show my website to a specific DIV on any screen(laptops big screens ). Here is the url of my website: http://new.lettucebeekids.org/
i want to show my website to the main yellow image Its div name is main_image. I mean watever the screen height width is my page should start from top menu logos to maximum this yellow part image.
ATM i have given it custom margin top CSS to look it like this but in large screens it goes up.