HTML is a markup language commonly used to create web pages. After creating a web page, the HTML code needs to be run to display the content and style of the web page. So, how does HTML work?
HTML is a markup language that runs through the browser. When a user enters a URL in the browser or clicks a link, the browser sends a request to the server to obtain the HTML code of the web page. After receiving the request, the server will send the HTML code of the web page back to the browser. The HTML code received by the browser contains the content, style and structure information of the web page.
After the browser receives the HTML code, it will parse the code according to HTML syntax rules and generate a DOM (Document Object Model) tree. The DOM tree is a tree structure that uses all elements in the HTML document (such as titles, paragraphs, pictures, etc.) as nodes, and the relationship between nodes is from parent nodes to child nodes. The DOM tree is a data structure used by browsers to describe the structure of HTML documents.
After generating the DOM tree, the browser will apply CSS and JavaScript codes to each element in the DOM tree, and render the style of the web page according to the style rules of HTML and CSS. JavaScript can be used to implement dynamic effects and interactive behaviors, such as button clicks, mouse scrolling, etc. All these effects are achieved by modifying the DOM tree or adding CSS classes to HTML elements.
The browser will then present the rendered web page to the user's screen. Users can interact with web pages, such as clicking links, filling out forms, etc. These interactive behaviors may cause the browser to re-request new HTML code, thus updating the web page content.
In short, HTML is a markup language. When the browser runs the HTML code, it will face multiple steps, including requesting the HTTP server to obtain the corresponding HTML code, parsing the HTML code to generate a DOM tree, and rendering the HTML. Apply CSS styles to present the final web page content to users.
The above is the detailed content of A brief analysis of how HTML works. For more information, please follow other related articles on the PHP Chinese website!
What is useEffect? How do you use it to perform side effects?Mar 19, 2025 pm 03:58 PMThe 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.
Explain the concept of lazy loading.Mar 13, 2025 pm 07:47 PMLazy loading delays loading of content until needed, improving web performance and user experience by reducing initial load times and server load.
What are higher-order functions in JavaScript, and how can they be used to write more concise and reusable code?Mar 18, 2025 pm 01:44 PMHigher-order functions in JavaScript enhance code conciseness, reusability, modularity, and performance through abstraction, common patterns, and optimization techniques.
How does currying work in JavaScript, and what are its benefits?Mar 18, 2025 pm 01:45 PMThe 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
How does the React reconciliation algorithm work?Mar 18, 2025 pm 01:58 PMThe 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
What is useContext? How do you use it to share state between components?Mar 19, 2025 pm 03:59 PMThe 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.
How do you prevent default behavior in event handlers?Mar 19, 2025 pm 04:10 PMArticle discusses preventing default behavior in event handlers using preventDefault() method, its benefits like enhanced user experience, and potential issues like accessibility concerns.
What are the advantages and disadvantages of controlled and uncontrolled components?Mar 19, 2025 pm 04:16 PMThe 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
SublimeText3 Mac version
God-level code editing software (SublimeText3)
SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.
ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment
mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
SublimeText3 English version
Recommended: Win version, supports code prompts!
