Home Web Front-end HTML Tutorial How do you understand the semantics of HTML structure?

How do you understand the semantics of HTML structure?

Oct 22, 2016 am 12:00 AM

When the style is removed or lost, the page can present a clear structure:

HTML itself has no performance. We see that for example, <h1> is bold, with a font size of 2em, and bold; <strong> is bold. Don’t think that this is the performance of HTML. These are actually the default css of HTML. Styles are at work, so when the styles are removed or lost, the page can present a clear structure. This is not an advantage of the semantic HTML structure. However, browsers have default styles. The purpose of the default styles is also to better express the semantics of HTML. , it can be said that the browser's default style and the semantic HTML structure are inseparable.

Screen readers (if the visitor is visually impaired) will "read" your page based entirely on your markup.

For example, if you use semantic markup, the screen reader will "spell out" your word instead of trying to pronounce it in full.

PDA, mobile phones and other devices may not be able to render web pages like ordinary computer browsers (usually because these devices have weak support for CSS)

Using semantic markup ensures that these devices render web pages in a meaningful way . Ideally, the viewing device is tasked with rendering web pages consistent with the conditions of the device itself.

Semantic markup provides the relevant information needed by the device, saving you from having to consider all possible display situations (including existing or new devices in the future). For example, a mobile phone can choose to use a markup Title text is displayed in bold. A handheld computer may display it in a larger font. Either way once you mark text as a title, you can be sure that the reading device will read it appropriately on its own terms. Show page.

Search engine crawlers also rely on markup to determine the context and weight of individual keywords

In the past, you may not have considered that search engine crawlers are also "visitors" of the website, but now they are actually extremely valuable users. Without them, search engines will not be able to index your website, and then ordinary users will be very Sad to visit.

It is very important whether your page is easy to understand for crawlers, because crawlers will largely ignore the markup used for performance and only focus on semantic markup.

Therefore, if the title of the page file is tagged instead, then this page may be positioned lower in the search results. In addition to improving ease of use, semantic markup facilitates the correct use of CSS and JavaScript because it itself Provides many "hooks" to apply the style and behavior of the page.

SEO mainly relies on the content of your website and external links.

Easy for team development and maintenance

W3C has set a good standard for us. Everyone in the team follows this standard, which can reduce many differentiated things, facilitate development and maintenance, improve development efficiency, and even

achieve modular development.

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot Article Tags

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Difficulty in updating caching of official account web pages: How to avoid the old cache affecting the user experience after version update? Difficulty in updating caching of official account web pages: How to avoid the old cache affecting the user experience after version update? Mar 04, 2025 pm 12:32 PM

Difficulty in updating caching of official account web pages: How to avoid the old cache affecting the user experience after version update?

How do I use HTML5 form validation attributes to validate user input? How do I use HTML5 form validation attributes to validate user input? Mar 17, 2025 pm 12:27 PM

How do I use HTML5 form validation attributes to validate user input?

What is the purpose of the <iframe> tag? What are the security considerations when using it? What is the purpose of the <iframe> tag? What are the security considerations when using it? Mar 20, 2025 pm 06:05 PM

What is the purpose of the <iframe> tag? What are the security considerations when using it?

How to efficiently add stroke effects to PNG images on web pages? How to efficiently add stroke effects to PNG images on web pages? Mar 04, 2025 pm 02:39 PM

How to efficiently add stroke effects to PNG images on web pages?

What is the purpose of the <meter> element? What is the purpose of the <meter> element? Mar 21, 2025 pm 12:35 PM

What is the purpose of the <meter> element?

What is the purpose of the <datalist> element? What is the purpose of the <datalist> element? Mar 21, 2025 pm 12:33 PM

What is the purpose of the <datalist> element?

What is the viewport meta tag? Why is it important for responsive design? What is the viewport meta tag? Why is it important for responsive design? Mar 20, 2025 pm 05:56 PM

What is the viewport meta tag? Why is it important for responsive design?

What is the purpose of the <progress> element? What is the purpose of the <progress> element? Mar 21, 2025 pm 12:34 PM

What is the purpose of the <progress> element?

See all articles