- https://en.wikipedia.org/wiki/Bootstrap_(front-end_framework)
- http://getbootstrap.com
- http://blog.getbootstrap.com
I am quite thrilled …
Head First HTML and CSS: 
Tired of reading HTML books that only make sense after you’re an expert? Then it’s about time you picked up Head First HTML and really learned HTML. You want to learn HTML so you can finally create those web pages you’ve always wanted, so you can communicate more effectively with friends, family, fans, and fanatic customers. You also want to do it right so you can actually maintain and expand your web pages over time so they work in all browsers and mobile devices. Oh, and if you’ve never heard of CSS, that’s okay–we won’t tell anyone you’re still partying like it’s 1999–but if you’re going to create web pages in the 21st century then you’ll want to know and understand CSS.
Learn the real secrets of creating web pages, and why everything your boss told you about HTML tables is probably wrong (and what to do instead). Most importantly, hold your own with your co-worker (and impress cocktail party guests) when he casually mentions how his HTML is now strict, and his CSS is in an external style sheet.
With Head First HTML, you’ll avoid the embarrassment of thinking web-safe colors still matter, and the foolishness of slipping a font tag into your pages. Best of all, you’ll learn HTML and CSS in a way that won’t put you to sleep. If you’ve read a Head First book, you know what to expect: a visually-rich format designed for the way your brain works. Using the latest research in neurobiology, cognitive science, and learning theory, this book will load HTML and CSS into your brain in a way that sticks.
So what are you waiting for? Leave those other dusty books behind and come join us in Webville. Your tour is about to begin.
Pragmatic Guide to Sass: 
CSS is fundamental to the web, but it’s a basic language and lacks many features. Sass is just like CSS, but with a whole lot of extra power so you can get more done, more quickly. Build better web pages today with Pragmatic Guide to Sass. These concise, easy-to-digest tips and techniques are the shortcuts experienced CSS developers need to start developing in Sass today.
Something like /html/body/p…
replaced by: Head First HTML and CSS
this one is outdated!!!
Head First HTML with CSS & XHTML – O’Reilly Media
A Learner’s Companion to HTML, CSS, and XHTML
By Elisabeth Robson, Eric T Freeman
Publisher: O’Reilly Media
Released: December 2005 (yes, it’s a little older, and it doesn’t cover HTML5 yet, but still!!!)
Pages: 704
This is a really attractive book for learning.
I guess I am going to look this series:
CSS: The Definitive Guide, Third Edition – O’Reilly Media
Chapter 8: Padding, Borders, and Margins
it has a nice picture (Figure 8-2) on the CSS box model – maybe every book on CSS has a picture like this, but this one is really quite nice.
Introduction to HTML and CSS — O’Reilly School of Technology
I hope, I will complete this lesson this afternoon.
Actually I would like to complete the entire course tomorrow.
I asked myself: In which order are the 4 values listed, and it took me a while, to find a serious statement on this.
From CSS: The Missing Manual, Second Edition.
… You’ll frequently want to set all four sides of a style’s margin or padding. …
… The order in which you specify the four values is important. It must be top, right, bottom, and left. If you get it wrong, you’ll be in trouble. In fact, the easiest way to keep the order straight is to remember to stay out of TRouBLe—top, right, bottom, and left. …