HTML—Hypertext Markup Language, is a language used to create web pages. It is a markup language with many tags used to define the structure and content of the document. The basic structure of an HTML document includes document type declaration, html, head, title, body and other elements. In this article, we will discuss in detail how to create HTML documents, including the basic structure of the document, common HTML tags and coding specifications.
1. Basic structure of HTML document
Before creating an HTML document, the document type declaration (DTD) must be defined to tell the browser which HTML version to use to parse the document. The syntax is as follows:
The document type declaration must be placed before the html element. Next is the html element, which defines the root element of the entire HTML document. The html element has two required child elements: head and body. The head element contains the document's metadata, such as title, meta, link, etc. The body element defines the main part of the HTML document and contains various elements such as text, images, links, tables, etc.
The following is the basic structure of an HTML document:
<title>网页标题</title> <meta>
head>
<!-- 网页主体内容 -->
2. HTML tag
HTML tag is an HTML document The basic building blocks that define the content and structure of a document. Tags usually appear in pairs, where the first tag is called the start tag and the second tag is called the end tag. Between the two tags is the content contained in the tag. The following are some commonly used HTML tags and their uses:
1. Title tag - used to define the title of the web page. The largest title uses the h1 tag, and h2 to h6 represent different levels of titles.
Title 1
Title 2
Title 3
Title 4
Heading 5
Heading 6
2. Paragraph tag - used to define the paragraphs of the web page.
This is a paragraph.
3. Link tag - used to add hyperlinks to web pages.
4. Image tag - used to add images to web pages.
5. List tag - used to define an ordered or unordered list.
- List item 1
- List item 2
- List item 3
-
- List item 2
- List item 3
The above are only some of the applications of HTML tags. You can learn more about the usage of HTML tags by consulting relevant information on the HTML language.
3. Coding specifications
1. Indentation specifications: Any block element should start on a new line and be indented one level.
2. Tag specifications: For tags that have no closing tag or two adjacent tags without spaces, use "/" after the closing tag name to close the tag.
3. Attribute specification: The value of the attribute should be enclosed in double quotes instead of single quotes.
4. Comment specifications: There are two kinds of comments in HTML, one is a line comment, starting with ""; the other is a paragraph comment, Add "" after the comment content.
To sum up, the method of creating HTML documents is very simple. As long as you understand the basic structure of the document and common HTML tags, you can easily create your own website and add various functions. At the same time, you must also pay attention to comply with HTML coding standards to ensure the best display effect of web pages.
The above is the detailed content of A detailed discussion of HTML documents. For more information, please follow other related articles on the PHP Chinese website!

The article discusses useEffect in React, a hook for managing side effects like data fetching and DOM manipulation in functional components. It explains usage, common side effects, and cleanup to prevent issues like memory leaks.

Lazy loading delays loading of content until needed, improving web performance and user experience by reducing initial load times and server load.

Higher-order functions in JavaScript enhance code conciseness, reusability, modularity, and performance through abstraction, common patterns, and optimization techniques.

The article discusses currying in JavaScript, a technique transforming multi-argument functions into single-argument function sequences. It explores currying's implementation, benefits like partial application, and practical uses, enhancing code read

The article explains React's reconciliation algorithm, which efficiently updates the DOM by comparing Virtual DOM trees. It discusses performance benefits, optimization techniques, and impacts on user experience.Character count: 159

Article discusses preventing default behavior in event handlers using preventDefault() method, its benefits like enhanced user experience, and potential issues like accessibility concerns.

The article explains useContext in React, which simplifies state management by avoiding prop drilling. It discusses benefits like centralized state and performance improvements through reduced re-renders.

The article discusses the advantages and disadvantages of controlled and uncontrolled components in React, focusing on aspects like predictability, performance, and use cases. It advises on factors to consider when choosing between them.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

SublimeText3 English version
Recommended: Win version, supports code prompts!

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)
