Learn html step by step----Lesson 3

After studying the previous two lessons, I don’t know if you have a certain understanding of what html is. Today’s third lesson is a summary of the first phase. Some new content will be added, but more I will make a summary. Okay, without further ado, let’s get into today’s course!
Based on the previous two lessons, this lesson mainly adds a problem of inserting pictures. The code for inserting pictures:
img tag: represents the insertion of pictures, src: is actually the abbreviation of source, to put it bluntly, it is a resource, so what follows the resource is the picture to be inserted, alt is a very important attribute value, and what is contained in it It refers to the replacement text when the image cannot be displayed normally. This is easy to understand. Sometimes if the web page loads slowly, you can see that the place where the web page should be displayed is what we have in the alt attribute. determined value.
And the img tag does not need to end with the tag, but only needs to add a backslash at the end of the img.
Also, the path to the image here is a relative path. Because I put the image and the web page file in a folder, it is relatively easy to write the path. You can try it yourself!
The specific code is below:
"http://www.w3.org/TR/xhtml11//DTD/xhtml11.dtd ">

Yao Ming

NickName:Yao

Position:Center

Height:216cm

Weight:156kg

Age:28

BirthPlace :Shanghai China

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NickName:Air YI

Position:Formater

Height:208cm

Weight:120kg

Age:24

BirthPlace :Guangdong China

After the web page is written, what we have to do is to verify the web page: http://validator.w3.org is URL, because in most cases our web pages are not online, so we choose the validator by file uploads option to select the web page file we want to verify, and then it will give an error message or the like. If there are no errors or warnings, it proves that your code is written very well.
Then let’s summarize what we have learned in the first three lessons:
1. Which four tags must be included in all html pages: html, head, title, and body tags;
2. Line branch and separation tags hr and How to use br respectively;
3. Insert tag img of pictures, etc.;
This is the end of the first stage of learning. Next, we will start learning more beautiful and powerful html, everyone should work hard!

The above is the content of learning HTML step by step----Lesson 3. For more related content, please pay attention to the PHP Chinese website (www.php.cn)!