Head First html and css

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Serious HTML
standards and all that jazz
What else is there to know about HTML? 
You’re well on your way to 
mastering HTML. In fact, isn’t it about time we move on to CSS and learn how to make 
all this bland markup look fabulous? Before we do, we need to make sure your HTML 
is really ready for the big leagues. Don’t get us wrong, you’ve been writing first-class 
HTML all along, but there are just a few extra things you need to do to make it “industry 
standard” HTML. It’s also time you think about making sure you’re using the latest and 
greatest HTML standard, otherwise known as HTML5. By doing so, you’ll ensure that 
your pages play well with the latest i-Device, and that they’ll display more uniformly 
across all browsers (at least the ones you’d care about). You’ll also have pages that 
load faster, pages that are guaranteed to play well with CSS, and pages that are ready 
to move into the future as the standards grow. Get ready, this is the chapter where you 
move from web tinkerer to web professional.
A Brief History of HTML
 
 
 
222
The new, and improved, HTML5 doctype 
 
 
227
HTML, the new “living standard” 
 
 
 
228
Adding the document type definition
 
 
229
The 
doctype 
test 
drive 
230
Meet 
the 
W3C 
validator 
233
Validating the Head First Lounge 
 
 
 
234
Houston, we have a problem… 
 
 
 
235
Fixing 
that 
error 
236
We’re 
almost 
there… 237
Adding a 

 tag to specify the character encoding 
 
239
Making the validator (and more than a few browsers) happy
with a 

 
tag… 
240
Third 
time’s 
the 
charm? 
241
Calling all HTML professionals, grab the handbook… 
 
244
Exercise 
Solutions 
251