Don't know how much of this still applies (2011), but it's a good starting point: How Browsers Work: Behind the scenes of modern web browsers https://www.html5

Don't know how much of this still applies (2011), but it's a good starting point: How Browsers Work: Behind the scenes of modern web browsers https://www.html5rocks.com/en/tutorials/internals/howbrowserswork/ https://www.html5rocks.com/en/tutorials/internals/howbrowser...