Thanks to my friends at Packt, Ben Renow-Clarke and Nidhisha Shetty for walking me through how to write a book. They must have thought I was George R. R. Martin with how many times I missed our target dates. Sorry for that. Thanks to Dominic Shakeshaft for reaching out to me and believing that my Mastering CSS video course should be the basis for a book.

Speaking of the video course, thanks to Nitee Shetty for editing and collaborating on the video course, which this book is largely based on.

Thanks to my mentors at Merrill Lynch: Pratik Mehta and my manager, Paresh Deshmukh, and everyone on the Front-end Engineering team whose relentless desire to learn pushes me to keep learning and honing my craft.

And most of all, I'd like to thank my wife, Renee, for all her support while writing this book. Many, many evenings were spent writing this book after work. Her support and encouragement helped me hang in there to get this book written. Love you, Renee!