Assuming your web browsers curiosity is through the roof and you have a plenty of time to dedicate, here is a useful web page to try.
Taligarsiel.com includes thousands upon thousands lines of text to explain (mostly) everything you ever wanted to know about the web browsers, from rendering engines to the structure itself.
Furthermore, it covers four major web browsers: Internet Explorer, Firefox, Google Chrome and Safari.
About (Author Profile)
Vygantas is a former web designer whose projects are used by companies such as AMD, NVIDIA and departed Westood Studios. Being passionate about software, Vygantas began his journalism career back in 2007 when he founded FavBrowser.com. Having said that, he is also an adrenaline junkie who enjoys good books, fitness activities and Forex trading.