This is a student project, part of the Odin Project (http://www.theodinproject.com) curriculum to learn web development.
The goal was to build the google.com homepage to demonstrate basic knowledge in HTML and CSS. It was all about the page structure and presentation. Links and buttons were never meant to work or lead anywhere.
All basic HTML and CSS skills had to be used. The most challenging part was the layout, the way CSS attributes like display, position and float work together while linked to different nested HTML tags.
From The Odin Project's curriculum