Hypertext Markup Language, also known as HTML, is a standard markup language used to create web pages. It is composed of a series of HTML tags. Most HTML tags appear in pairs, such as
, which are start tags and end tags respectively. But there are also some tags that have no content and do not have an end tag, such as .
Here are 15 frequently asked questions about HTML for everyone to learn and refer to.
1.What does HTML stand for?
Answer: HyperText Markup Language, hypertext markup language.
2.What is HTML used for?
Answer: HTML is the standard markup language used to create web pages.
3.What is DOCTYPE?
A: It will tell the browser what type of document it is and which version of the HTML specification it is written in.
4. What are tags in HTML?
Answer: Tag will tell the browser how to parse the content.
5. What is the way to write tags in HTML?
Answer: General format: Content usually appears in pairs, such as , they are called start tags and end tags respectively.
6. What is the structure of tags in HTML documents?
Answer: HTML documents follow the following format:
Main body of text. 7. How to represent hyperlinks in HTML?
A: You can click on a text, image or other element with a hyperlink to jump to another page. Its general format:link text
, the href attribute represents the target address to jump to. Such asPHP100 Chinese website
8. What are attributes in HTML? Answer: Attributes provide specific information about an element. It is usually written in the opening tag, usually in the format of "name=vlaue".
9. How to make comments in HTML? Answer: The label of the comment is , and in the middle is the content of the comment to be inserted.
10.What does CSS stand for?
Answer: Cascading Style Sheets, hierarchical style sheets.
11. How many ways to add CSS styles to HTML?
Answer: There are three ways to add styles to HTML elements. The first is to directly assign a value to the style attribute of the element. The second is to add the element in the head
of the HTML document and add the style in
, the third is to introduce a CSS file in the HTML header, that is, to make the CSS style adding rules into a separate file.
12. How to add pictures?
Answer: Use the tag, note that it does not have an end tag, and indicate the path to insert the image by assigning a value to its src attribute. Such as
13. How to represent the table? Answer: Use thetag, where
represents a row in the table andrepresents the content in the table. Such as:
R1,C1
R1,C2
R2,C1
R2,C2
14. How to represent a list?
Answer: represents an unordered list,
represents an ordered list, and represents list items.
15. What are
and
elements? Answer:is a block-level element, which can be used as a container for other HTML elements to distinguish different regional content; while is an inline element, which is generally only used as a container for a piece of text.

MicrodatainHTML5enhancesSEOanduserexperiencebyprovidingstructureddatatosearchengines.1)Useitemscope,itemtype,anditempropattributestomarkupcontentlikeproductsorevents.2)TestmicrodatawithtoolslikeGoogle'sStructuredDataTestingTool.3)ConsiderusingJSON-LD

HTML5introducesnewinputtypesthatenhanceuserexperience,simplifydevelopment,andimproveaccessibility.1)automaticallyvalidatesemailformat.2)optimizesformobilewithanumerickeypad.3)andsimplifydateandtimeinputs,reducingtheneedforcustomsolutions.

H5 is HTML5, the fifth version of HTML. HTML5 improves the expressiveness and interactivity of web pages, introduces new features such as semantic tags, multimedia support, offline storage and Canvas drawing, and promotes the development of Web technology.

Accessibility and compliance with network standards are essential to the website. 1) Accessibility ensures that all users have equal access to the website, 2) Network standards follow to improve accessibility and consistency of the website, 3) Accessibility requires the use of semantic HTML, keyboard navigation, color contrast and alternative text, 4) Following these principles is not only a moral and legal requirement, but also amplifying user base.

The H5 tag in HTML is a fifth-level title that is used to tag smaller titles or sub-titles. 1) The H5 tag helps refine content hierarchy and improve readability and SEO. 2) Combined with CSS, you can customize the style to enhance the visual effect. 3) Use H5 tags reasonably to avoid abuse and ensure the logical content structure.

The methods of building a website in HTML5 include: 1. Use semantic tags to define the web page structure, such as, , etc.; 2. Embed multimedia content, use and tags; 3. Apply advanced functions such as form verification and local storage. Through these steps, you can create a modern web page with clear structure and rich features.

A reasonable H5 code structure allows the page to stand out among a lot of content. 1) Use semantic labels such as, etc. to organize content to make the structure clear. 2) Control the rendering effect of pages on different devices through CSS layout such as Flexbox or Grid. 3) Implement responsive design to ensure that the page adapts to different screen sizes.

The main differences between HTML5 (H5) and older versions of HTML include: 1) H5 introduces semantic tags, 2) supports multimedia content, and 3) provides offline storage functions. H5 enhances the functionality and expressiveness of web pages through new tags and APIs, such as and tags, improving user experience and SEO effects, but need to pay attention to compatibility issues.


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