Learn html step by step----Lesson 2

Let’s move on to the first lesson. In the first lesson, we saw a relatively complete html code. If you have hands-on practice, you should be able to see the actual effect. However, one problem that needs to be corrected here is that in Now that we have developed to 2011, what we should notice is that there is no definition of xml in the first line of the source code of many web pages, so we can ignore that line of code when writing code in the future, and directly start from " ! doctype....>This place starts from the bottom.
br/> "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">