This document discusses cross-browser compatibility and page load times. It defines cross-browser compatibility as building websites that look, feel and function similarly across different browsers and devices. Page load is the time it takes for a webpage and all its components to load. The document recommends considering the majority audience browser and trends when developing websites. It also provides tools like Reset.css, Adobe Browser Lab, CrossBrowserTesting, YSlow and Pingdom to test cross-browser compatibility and optimize page load times.