search
HomeWeb Front-endHTML Tutorial1、HTML基础学习 第一天_html/css_WEB-ITnose

1、基本标签属性

 1 <html> 2 <!--属性和属性值对大小写不敏感。 3 不过,万维网联盟在其 HTML 4 推荐标准中推荐小写的属性/属性值。 4 而新版本的 (X)HTML 要求使用小写属性。 5  --> 6  7 <body> 8  9 <!-- hello this is a comment-->10 11 <h1 id="This-is-heading">This is heading 1</h1>12 <h2 id="This-is-heading">This is heading 2</h2>13 <h3 id="This-is-heading">This is heading 3</h3>14 <h4 id="This-is-heading">This is heading 4</h4>15 <h5 id="This-is-heading">This is heading 5</h5>16 <h6 id="This-is-heading">This is heading 6</h6>17 18 <hr><!--绘制水平线-->19 20 <a href="http://www.baidu.com"> link_baidu </a>21 22 <br>23 <body bgcolor="#e6e6e6">24 25 26 <p> this is paragraph 1 </p>27 <p> this is paragraph 2 </p>28 <p> this is paragraph 3 </p>29 30 <img  src="/static/imghwm/default1.png"  data-src="/i/eg_w3school.gif"  class="lazy"/ alt="1、HTML基础学习 第一天_html/css_WEB-ITnose" >31 <img  src="/static/imghwm/default1.png"  data-src="/i/eg_w3school.gif"  class="lazy"    style="max-width:90%"  style="max-width:90%" / alt="1、HTML基础学习 第一天_html/css_WEB-ITnose" >32 <br/>33 <br/>34 <br/>35 36 37 normal38 <br/>39 <b> bold </b>40 <br/>41 <strong> strong </strong>42 <br/>43 <big> big font </big>44 <br/>45 <small> small font </small>46 <br/>47 <i> italic font </i>48 <br/>49 what's the  <sub> fuck </sub>50 <br/>51 what's the  <sup> fuck </sup>52 <br/>53 <i> what's the  <sup> fuck </sup> </i>54 55 <p>pre 标签很适合显示计算机代码:</p>56 57 <pre class="brush:php;toolbar:false">58 for i = 1 to 1059      print i60 next i61 
62 63

Statement
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
What are self-closing tags? Give an example.What are self-closing tags? Give an example.Apr 27, 2025 am 12:04 AM

Self-closingtagsinHTMLandXMLaretagsthatclosethemselveswithoutneedingaseparateclosingtag,simplifyingmarkupstructureandenhancingcodingefficiency.1)TheyareessentialinXMLforelementswithoutcontent,ensuringwell-formeddocuments.2)InHTML5,usageisflexiblebutr

Beyond HTML: Essential Technologies for Web DevelopmentBeyond HTML: Essential Technologies for Web DevelopmentApr 26, 2025 am 12:04 AM

To build a website with powerful functions and good user experience, HTML alone is not enough. The following technology is also required: JavaScript gives web page dynamic and interactiveness, and real-time changes are achieved by operating DOM. CSS is responsible for the style and layout of the web page to improve aesthetics and user experience. Modern frameworks and libraries such as React, Vue.js and Angular improve development efficiency and code organization structure.

What are boolean attributes in HTML? Give some examples.What are boolean attributes in HTML? Give some examples.Apr 25, 2025 am 12:01 AM

Boolean attributes are special attributes in HTML that are activated without a value. 1. The Boolean attribute controls the behavior of the element by whether it exists or not, such as disabled disable the input box. 2.Their working principle is to change element behavior according to the existence of attributes when the browser parses. 3. The basic usage is to directly add attributes, and the advanced usage can be dynamically controlled through JavaScript. 4. Common mistakes are mistakenly thinking that values ​​need to be set, and the correct writing method should be concise. 5. The best practice is to keep the code concise and use Boolean properties reasonably to optimize web page performance and user experience.

How can you validate your HTML code?How can you validate your HTML code?Apr 24, 2025 am 12:04 AM

HTML code can be cleaner with online validators, integrated tools and automated processes. 1) Use W3CMarkupValidationService to verify HTML code online. 2) Install and configure HTMLHint extension in VisualStudioCode for real-time verification. 3) Use HTMLTidy to automatically verify and clean HTML files in the construction process.

HTML vs. CSS and JavaScript: Comparing Web TechnologiesHTML vs. CSS and JavaScript: Comparing Web TechnologiesApr 23, 2025 am 12:05 AM

HTML, CSS and JavaScript are the core technologies for building modern web pages: 1. HTML defines the web page structure, 2. CSS is responsible for the appearance of the web page, 3. JavaScript provides web page dynamics and interactivity, and they work together to create a website with a good user experience.

HTML as a Markup Language: Its Function and PurposeHTML as a Markup Language: Its Function and PurposeApr 22, 2025 am 12:02 AM

The function of HTML is to define the structure and content of a web page, and its purpose is to provide a standardized way to display information. 1) HTML organizes various parts of the web page through tags and attributes, such as titles and paragraphs. 2) It supports the separation of content and performance and improves maintenance efficiency. 3) HTML is extensible, allowing custom tags to enhance SEO.

The Future of HTML, CSS, and JavaScript: Web Development TrendsThe Future of HTML, CSS, and JavaScript: Web Development TrendsApr 19, 2025 am 12:02 AM

The future trends of HTML are semantics and web components, the future trends of CSS are CSS-in-JS and CSSHoudini, and the future trends of JavaScript are WebAssembly and Serverless. 1. HTML semantics improve accessibility and SEO effects, and Web components improve development efficiency, but attention should be paid to browser compatibility. 2. CSS-in-JS enhances style management flexibility but may increase file size. CSSHoudini allows direct operation of CSS rendering. 3.WebAssembly optimizes browser application performance but has a steep learning curve, and Serverless simplifies development but requires optimization of cold start problems.

HTML: The Structure, CSS: The Style, JavaScript: The BehaviorHTML: The Structure, CSS: The Style, JavaScript: The BehaviorApr 18, 2025 am 12:09 AM

The roles of HTML, CSS and JavaScript in web development are: 1. HTML defines the web page structure, 2. CSS controls the web page style, and 3. JavaScript adds dynamic behavior. Together, they build the framework, aesthetics and interactivity of modern websites.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Atom editor mac version download

Atom editor mac version download

The most popular open source editor

SAP NetWeaver Server Adapter for Eclipse

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.

Dreamweaver Mac version

Dreamweaver Mac version

Visual web development tools

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

WebStorm Mac version

WebStorm Mac version

Useful JavaScript development tools