html文件标记有定义标题的title标签，定义基准的文字字体，字号颜色的basefont标签，设置外部链接的link标签，定义脚本的script标签等
头部标记
：当前文本的URL全称(基地网址)
：设定基准的文字字体、字号和颜色
： 设定显示在浏览器左上方的标题内容</p>
<p><isindex>： 表明该文档是一个可用于检索的网关脚本，由服务器自动建立</p>
<p><meta>： 有关文档本身的源信息，如用于查询的关键字、获取该文档的有效期等</p>
<p><style> ：设定CSS层叠样式表的内容</p>
<p><link>： 设定外部文件的链接</p>
<p><script>： 设定页面中程序脚本的内容</p>
<p id="标题标记title"><strong>标题标记<title></strong></p>
<p id="标题标记title" style='box-sizing: border-box; outline: 0px; margin: 8px 0px 16px; padding: 0px; font-size: 24px; font-family: "Microsoft YaHei", "SF Pro Display", Roboto, Noto, Arial, "PingFang SC", sans-serif; color: rgb(79, 79, 79); line-height: 32px; overflow-wrap: break-word; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);'><img src="/static/imghwm/default1.png" data-src="https://img.php.cn/upload/article/000/000/028/5cd13e254cc42836.jpg" class="lazy" alt="html网页文件的标记有哪些" ></p>
<p id="源信息标记meta"><strong>源信息标记<meta></strong></p>
<p>设置页面关键字 </p>
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