About the difference between section tag and div tag in html5 (examples included)

The main purpose of this article is to introduce you to the difference between HTML5 section tags and div tags. The usage of section and div may seem similar, but in fact they are not too different. In some places, they can be converted to each other, but in some places You can only use section or div, which cannot be converted. Okay, let’s read the article together

First look at what is written in the HTML standard of the section tag:

Each section corresponds to a different topic. Pay attention to the theme of the content itself, not to the division criteria set by others. Examples of

section include book chapter chapters, each tab page of a multi-tab dialog box, and numbered sections of a paper. The homepage of the website may be divided into sections such as introduction, latest content, contact information, etc.

Note: Web page authors should use article instead of section elements if their content is used for syndicate. For example, every blog on the blog homepage. Another example is the first floor, second floor, third floor...n floor of forum posts. Usually each part of this content is similar in form but independent of source.

Note: section is not a universal container element. If it is only used for styling or scripting, use div elements. A simple rule of thumb is to use the section element only if the element's content will be listed in the document outline.

Next, let’s talk about the difference between html5 section tags and div tags:

1. Section is not a tag specially used as a container, but div

There should be a title (h1~6) in the section, but it is recommended to use article instead

We can understand it as a non-article paragraph, a special module container with a clear id (not dedicated to package container for living blocks).

In other words, if div is generally used as an element container instead of section, then section is useless? too young too simple.

In this case, it is better to use section than div

section, as the name suggests, is a chapter, for example:

<section>
<h1 id="PHP中文网">PHP中文网</h1>
<p>欢迎来到PHP中文网，这里的网址是www.php.cn</p>
</section>

As for why it is used, it is for semantics, there is section , article, and dl are so comfortable to look at. They are easy to understand for humans and computers. It is much better than the divs that are everywhere.

2. One of the most common mistakes people make when using tags is to equate HTML5's

with

- specifically, using it directly as a replacement (using in style).

is not a style container. The section element represents a semantic part of the content that helps build a document summary. It should contain a header. If you're looking for an element that acts as a page container (like HTML or XHTML style), then consider writing the style directly to the body element, as Kroc Camen suggests. If you still need additional style containers, stick with divs.

div is universal and supported by all browsers. section is an H5 semantic tag,

and

It can be understood as the same meaning, but the former is written in H5

Summary about the section tag and div tag in html5:

DIV: This tag has always been our The most commonly seen and used tags. It itself has no semantics and is used as a layout and styling tag.

Section: Similar to div, but it has further semantics. A section is used as a topical piece of content, usually with a title in it. Typical application scenarios for section should be chapters of an article, tabs in the tab dialog box, or numbered parts of the paper.

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