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HTML三叉戟，标签、元素、属性各个的意义是什么？
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一、HTML（标签）
在HTML中，标签是用于表示不同类型内容的关键词或代码。它们通常被尖括号包围，例如
HTML标签通常成对出现，包括开始标签和结束标签，例如我是一个粉刷匠
DOCTYPE html> <html> <head> <title>归来巨星title> head> <body> <h1>欢迎来到巨星的网页h1> <p>这是一个p标签，我代表是一个段落。p> <h2>我是一个h2标签，我可以是从h1-h6哦！h2> <ul> <li>list1li> <li>list2li> <li>list3li> ul> <h2>链接h2> <a href="https://www.csdn.net/">点击这里a>访问csdn网站。 <h2>图片h2> <img src="aaaa.jpg" alt="图片"> <h2>表格h2> <table> <tr> <th>姓名th> <th>年龄th> tr> <tr> <td>小明td> <td>15td> tr> <tr> <td>小红td> <td>16td> tr> table> body> html>- 1
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说明
标签 说明 html 根元素，包含了整个HTML文档的内容。 head 头部元素，用于定义文档的元数据，例如标题（ </code>标签）</td></tr><tr><td>body</td><td>主体元素，包含了网页的可见内容。</td></tr><tr><td>h1~h6</td><td>标题标签，用于定义不同级别的标题。</td></tr><tr><td>p</td><td>段落标签，用于定义段落内容。</td></tr><tr><td>ul</td><td>无序列表标签，用于创建项目符号列表。</td></tr><tr><td>li</td><td>列表项标签，用于定义列表中的每个项目。</td></tr><tr><td>a</td><td>链接标签，用于创建超链接。</td></tr><tr><td>img</td><td>图像标签，用于插入图像。</td></tr><tr><td>table</td><td>表格标签，用于创建表格。</td></tr><tr><td>tr</td><td>表格行标签，用于定义表格中的行。</td></tr><tr><td>th</td><td>表头单元格标签，用于定义表头单元格。</td></tr><tr><td>td</td><td>表格数据单元格标签，用于定义表格中的数据单元格。</td></tr></tbody></table></div> <h2><a name="t2"></a><a id="HTML_70"></a>二、HTML（元素）</h2> <p>元素是标签及其包含的内容的总称。它由开始标签、结束标签和它们之间的内容组成。在HTML中，元素由标签以及标签之间的内容组成，例如<code><div>元素</div></code>。元素表示了文档的结构和语义。</p> <pre data-index="1" class="set-code-show prettyprint"><code class="prism language-html has-numbering" onclick="mdcp.signin(event)" style="position: unset;"><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span><span class="token punctuation">></span></span>我是一个dom元素<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span> <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li></ul></pre> <p>简单的讲元素其实就是标签的使用，也就是标签连带着里面的内容，我们将其看做是一个整体，也就是当成了一个元素，当然后续我们也会讲解这样使用的作用以及意义等</p> <h2><a name="t3"></a><a id="HTML_78"></a>三、HTML（属性）</h2> <p>HTML属性用于提供关于HTML元素的附加信息，可以对元素进行设置和配置。属性以键值对的形式出现，位于元素的开始标签中。</p> <ol><li><code>id</code>属性：用于为元素指定唯一的标识符。</li></ol> <pre data-index="2" class="set-code-show prettyprint"><code class="prism language-html has-numbering" onclick="mdcp.signin(event)" style="position: unset;"> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>h1</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>title<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>这是标题<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>h1</span><span class="token punctuation">></span></span> <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li></ul></pre> <ol start="2"><li><code>class</code>属性：用于为元素指定一个或多个样式类。</li></ol> <pre data-index="3" class="set-code-show prettyprint"><code class="prism language-html has-numbering" onclick="mdcp.signin(event)" style="position: unset;"><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>box<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>p</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>box-red<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>这是一个带样式的段落。<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>p</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span> <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li><li style="color: rgb(153, 153, 153);">2</li><li style="color: rgb(153, 153, 153);">3</li></ul></pre> <ol start="4"><li><code>style</code>属性：用于为元素指定内联样式，包含CSS属性和值。</li></ol> <pre data-index="4" class="set-code-show prettyprint"><code class="prism language-html has-numbering" onclick="mdcp.signin(event)" style="position: unset;"><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>p</span> <span class="token special-attr"><span class="token attr-name">style</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span><span class="token value css language-css"><span class="token property">color</span><span class="token punctuation">:</span> red<span class="token punctuation">;</span> <span class="token property">font-size</span><span class="token punctuation">:</span> 16px<span class="token punctuation">;</span></span><span class="token punctuation">"</span></span></span><span class="token punctuation">></span></span>这是红色且字体大小为16像素的段落。<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>p</span><span class="token punctuation">></span></span> <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li></ul></pre> <ol start="5"><li><code>src</code>属性：用于指定图像、音频、视频等外部资源的URL。</li></ol> <pre data-index="5" class="set-code-show prettyprint"><code class="prism language-html has-numbering" onclick="mdcp.signin(event)" style="position: unset;"><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>img</span> <span class="token attr-name">src</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>image.jpg<span class="token punctuation">"</span></span> <span class="token attr-name">alt</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>图片<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>audio</span> <span class="token attr-name">src</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>audio.mp3<span class="token punctuation">"</span></span> <span class="token attr-name">controls</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>audio</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>video</span> <span class="token attr-name">src</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>video.mp4<span class="token punctuation">"</span></span> <span class="token attr-name">controls</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>video</span><span class="token punctuation">></span></span> <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li><li style="color: rgb(153, 153, 153);">2</li><li style="color: rgb(153, 153, 153);">3</li></ul></pre> <ol start="6"><li><code>href</code>属性：用于指定链接的URL。</li></ol> <pre data-index="6" class="set-code-show prettyprint"><code class="prism language-html has-numbering" onclick="mdcp.signin(event)" style="position: unset;"><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>a</span> <span class="token attr-name">href</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>https://www.example.com<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>点击这里访问示例网站<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>a</span><span class="token punctuation">></span></span> <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li></ul></pre> <ol start="7"><li><code>target</code>属性：用于指定链接打开的目标窗口或框架。</li></ol> <pre data-index="7" class="set-code-show prettyprint"><code class="prism language-html has-numbering" onclick="mdcp.signin(event)" style="position: unset;"><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>a</span> <span class="token attr-name">href</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>https://www.example.com<span class="token punctuation">"</span></span> <span class="token attr-name">target</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>_blank<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>在新窗口中打开链接<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>a</span><span class="token punctuation">></span></span> <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li></ul></pre> <ol start="8"><li><code>alt</code>属性：用于为图像元素提供替代文本，当图像无法显示时显示该文本。</li></ol> <pre data-index="8" class="set-code-show prettyprint"><code class="prism language-html has-numbering" onclick="mdcp.signin(event)" style="position: unset;"><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>img</span> <span class="token attr-name">src</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>image.jpg<span class="token punctuation">"</span></span> <span class="token attr-name">alt</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>替代文本<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li></ul></pre> <ol start="9"><li><code>disabled</code>属性：用于禁用表单元素的交互功能。</li></ol> <pre data-index="9" class="set-code-show prettyprint"><code class="prism language-html has-numbering" onclick="mdcp.signin(event)" style="position: unset;"><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>text<span class="token punctuation">"</span></span> <span class="token attr-name">disabled</span><span class="token punctuation">></span></span> <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li></ul></pre> <ol start="10"><li><code>required</code>属性：用于指示表单元素必须填写或选择。</li></ol> <pre data-index="10" class="set-code-show prettyprint"><code class="prism language-html has-numbering" onclick="mdcp.signin(event)" style="position: unset;"><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>text<span class="token punctuation">"</span></span> <span class="token attr-name">required</span><span class="token punctuation">></span></span> <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li></ul></pre> <p>最后至此也是希望大家能够简单的理解html的三要素</p> <h3><a name="t4"></a><a id="_124"></a>结语</h3> <blockquote> <p><strong>✨ 每天创作一点点</strong><br> <strong>✨ 开心快乐一整天</strong><br> <strong>✨ 点赞关注加收藏</strong><br> <strong>✨ 美好一天又一天</strong></p> </blockquote> <p>铁铁们 感谢支持 我需要你们的三连 👍👍👍<br> <img src="https://1000bd.com/contentImg/2022/06/29/180314189.gif" alt="请添加图片描述"></p> </div> </div> </li> <li class="list-group-item ul-li"> <b>相关阅读:</b><br> <nobr> <a href="/Article/Index/885983">人工神经网络技术及应用,人工神经网络应用场景</a> <br /> <a href="/Article/Index/1526507">Apache Paimon系列之：认识Paimon</a> <br /> <a href="/Article/Index/930793">musescore 4.0编译</a> <br /> <a href="/Article/Index/991499">Java架构师面试必备题</a> <br /> <a href="/Article/Index/1285115">7-38 掉入陷阱的数字</a> <br /> <a href="/Article/Index/671182">Docker容器数据卷</a> <br /> <a href="/Article/Index/1395267">二维码智慧门牌管理系统升级解决方案</a> <br /> <a href="/Article/Index/1170042">Facebook干货丨个人账号和企业账号篇</a> <br /> <a href="/Article/Index/901440">[汇编语言]更灵活的定位内存地址的方法</a> <br /> <a href="/Article/Index/1048566">k8s配置文件数据存储：ConfigMap</a> <br /> </nobr> </li> <li class="list-group-item from-a mb-2"> 原文地址：https://blog.csdn.net/clli_Chain/article/details/133891769 </li> </ul> </div> <div class="col-lg-4 col-sm-12"> <ul class="list-group" 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