This article introduces the basic usage of attribute selectors in CSS: setting styles for labels with specified attributes.
Code compiled from w3school: http://www.w3school.com.cn
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta http-equiv="Content-Language" content="zh-cn"><title>属性选择器</title><!--对带有指定属性的 HTML 元素设置样式。--> <style> [title] {color:red} [type=W3School] {background-color:#afa} [userDefineType~=W3School] {background-color:#aaf} [userDefineType02|=W3School] {background-color:#aaf} div[userDefineType03=W3School] {background-color:#faa} </style> <h3 id="一-所有带有title属性的html标签将显示为红色">(一)所有带有title属性的html标签将显示为红色。</h3> <h4 id="带有title属性的h">带有title属性的h4.</h4> <a title="title02" href="http://www.baidu.com">带有title属性的超链接.</a> <h4 id="没有title属性的h">没有title属性的h4.</h4> <a href="http://www.baidu.com">没有title属性的超链接.</a> <hr> <h3 id="二-所有type-W-School的html标签的背景色将显示为淡绿色">(二)所有type=W3School的html标签的背景色将显示为淡绿色。</h3> <p type="W3School">这是type=W3School的</p> <p type="otherType">有type属性,但是值不为W3School.</p> <p>没有有type属性的</p> <hr> <h3 id="三-所有userDefineType属性包含W-School的html标签的背景色将显示为淡蓝色-适用于由空格分隔的属性值-模糊搜索">(三)所有userDefineType属性包含W3School的html标签的背景色将显示为淡蓝色,适用于由空格分隔的属性值。(“模糊搜索”)</h3> <p userdefinetype="Hello W3School">userDefineType="Hello W3School"</p> <p userdefinetype="W3School Hello">userDefineType="W3School Hello"</p> <p userdefinetype="W3SchoolAAA">userDefineType="W3SchoolAAA"</p><p> </p><p userdefinetype="otherType">userDefineType="otherType"</p> <hr> <h3 id="四-同上-适用于由连字符分隔的属性值-注意-属性值必须以style中指定的-模糊搜索-的属性值开始">(四)同上,适用于由连字符分隔的属性值。注意:属性值必须以style中指定的“模糊搜索”的属性值开始!</h3> <p userdefinetype02="W3School-AA">userDefineType02="W3School-AA"</p> <p userdefinetype02="AA-W3School">userDefineType02="AA-W3School"</p> <p userdefinetype02="W3School Good">userDefineType02="W3School Good"</p><p> </p><p userdefinetype02="otherType">userDefineType02="otherType"</p> <hr> <h3 id="五-指定属性userDefineType-只有用在div上才有效">(五)指定属性userDefineType03只有用在div上才有效</h3> <div userdefinetype03="W3School"> <p>div拥有属性userDefineType03="W3School"</p> </div> <p userdefinetype03="W3School">p拥有属性userDefineType03="W3School"</p>Rendering:

The future of HTML will develop in a more semantic, functional and modular direction. 1) Semanticization will make the tag describe the content more clearly, improving SEO and barrier-free access. 2) Functionalization will introduce new elements and attributes to meet user needs. 3) Modularity will support component development and improve code reusability.

HTMLattributesarecrucialinwebdevelopmentforcontrollingbehavior,appearance,andfunctionality.Theyenhanceinteractivity,accessibility,andSEO.Forexample,thesrcattributeintagsimpactsSEO,whileonclickintagsaddsinteractivity.Touseattributeseffectively:1)Usese

The alt attribute is an important part of the tag in HTML and is used to provide alternative text for images. 1. When the image cannot be loaded, the text in the alt attribute will be displayed to improve the user experience. 2. Screen readers use the alt attribute to help visually impaired users understand the content of the picture. 3. Search engines index text in the alt attribute to improve the SEO ranking of web pages.

The roles of HTML, CSS and JavaScript in web development are: 1. HTML is used to build web page structure; 2. CSS is used to beautify the appearance of web pages; 3. JavaScript is used to achieve dynamic interaction. Through tags, styles and scripts, these three together build the core functions of modern web pages.

Setting the lang attributes of a tag is a key step in optimizing web accessibility and SEO. 1) Set the lang attribute in the tag, such as. 2) In multilingual content, set lang attributes for different language parts, such as. 3) Use language codes that comply with ISO639-1 standards, such as "en", "fr", "zh", etc. Correctly setting the lang attribute can improve the accessibility of web pages and search engine rankings.

HTMLattributesareessentialforenhancingwebelements'functionalityandappearance.Theyaddinformationtodefinebehavior,appearance,andinteraction,makingwebsitesinteractive,responsive,andvisuallyappealing.Attributeslikesrc,href,class,type,anddisabledtransform

TocreatealistinHTML,useforunorderedlistsandfororderedlists:1)Forunorderedlists,wrapitemsinanduseforeachitem,renderingasabulletedlist.2)Fororderedlists,useandfornumberedlists,customizablewiththetypeattributefordifferentnumberingstyles.

HTML is used to build websites with clear structure. 1) Use tags such as, and define the website structure. 2) Examples show the structure of blogs and e-commerce websites. 3) Avoid common mistakes such as incorrect label nesting. 4) Optimize performance by reducing HTTP requests and using semantic tags.


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

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

Hot Article

Hot Tools

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

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

SublimeText3 Chinese version
Chinese version, very easy to use

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

Dreamweaver Mac version
Visual web development tools
