Page loads with "focus" on the middle of the page

Hi all,
Iam using custom layout to load my html page in vaadin, but the when the page loads the mid section of the page falls into view or is in focus, rather than the top section of the page. I have to use the scrollbar every time to move to the top of the page once the page loads. any suggestions please.

A simple application demonstrating the problem would help to solve the issue.