January 2018
Intermediate to advanced
678 pages
20h 16m
English
Content preview from Web Programming with HTML5, CSS, and JavaScript
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2.5 Content Model Categories
What Content Is Allowed Within a Particular Container?
Despite the HTML validation service’s shortcomings mentioned in the previous section, it’s still a helpful tool, and you should use it. It’s good at identifying syntax errors, like misspelling tag names. It’s also good at containership rules. For example, the head container must contain a title element, and a p container must not contain a div container. With lots of elements (around 115), there are lots of containership rules (more than 11,000).1 Rather than having you remember each of those rules, it’s easier to assign elements to certain categories and have those categories be the basis for the containership rules. For a given web page, if an element ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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