HTML5 + CSS3 tutorial 1

Let's take a look at the HTML5 + CSS3 book. What development trends, technical advantages, and so on are all nonsense, then a dozen pages will be summed up as a saying ""

Today I learned a small html5 instance with the code:

<! DOCTYPE html> <meta charset = "UTF-8"> <title> html5 written for the first time </title> <p> This is written in html5 <br/> hello world

Html5 deletes a large number of tag elements based on html4 and adds some tag elements, as shown in the following table:

I mainly want to use code instances to learn html5, so there are few textual descriptions.

Attribute instance

<! DOCTYPE html> Effect: