html实例教程01.html5概述

html实例教程01.html5概述

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时间:2019-05-09

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1、北风网项目培训一、HTML5概述讲师:厉风行HTML5基础和实战1.1HTML5是何物HTML(HypertextMarkupLanguage),是用于描述网页文档的一种标记语言。HTML5是下一代的HTML,是HTML、XHTML以及HTMLDOM的新标准。HTML5有两大特点:首先,强化了Web网页的表现性能。其次,追加了本地数据库等Web应用的功能。1.2HTML5的前世今生古老的版本:HTML4。不完美的继任者:XHTML。(可扩展超文本置标语言。XML的子集)HTML5的雏形:WebAppl

2、ications1.0。(由WhatWG组织发起,此时W3C正在致力于XHTML2的推广)大统一的版本:HTML5。(W3C和WhatWG言归于好,统一标准)1.3HTML5的特征语义化标记Form表单增强功能视频/音频画布(Canvas)可编辑内容拖放稳健的数据存储等等1.4五大主流浏览器HTML5兼容性对比数据来源:http://www.findmebyip.com/litmus(1)HTML5Web应用程序1.4五大主流浏览器HTML5兼容性对比数据来源:http://www.findmebyi

3、p.com/litmus(2)HTML5图形和内嵌内容1.4五大主流浏览器HTML5兼容性对比数据来源:http://www.findmebyip.com/litmus(3)HTML5音频编码1.4五大主流浏览器HTML5兼容性对比数据来源:http://www.findmebyip.com/litmus(4)HTML5视频编码1.4五大主流浏览器HTML5兼容性对比数据来源:http://www.findmebyip.com/litmus(5)HTML5表单对象1.4五大主流浏览器HTML5兼容性对

4、比数据来源:http://www.findmebyip.com/litmus(6)HTML5表单属性1.5当前浏览器支持情况测试测试地址:http://www.html5test.com/1.6HTML5开发工具代码编辑器UltraeditDreamweavercs5.5AptanaStudio3(推荐)页面调试工具GoogleChrome(开发人员工具)FireFox(FireBug)Opera1.7经典的HelloWorld

5、t="utf-8">我的第一个HTML5文档

Hello,World!

1.8简洁的HTML5简洁的DOCTYPE HTML5只需一个简洁的文档类型:。它有意不使用版本,因此文档将会适用所有版本的HTML。简单易记的语言标签 你并不需要在中使用xmlns或xml:lang标记。将对HTML5有效。简单易记的编码类型 你现在可以在meta标签

6、中使用“charset”:不需要闭合标签 在HTML5中,空标签(如:br、img和input)并不需要闭合标签。废弃的标签 下面这些标签并不被HTML5支持:
、、、、<s>、<strike>、<tt>、<u>和<xmp>1.9.1新浪微博——主标题和副标题1.9.2新浪微博——导航栏1.9.</p><p>7、3新浪微博——文章标题1.9.4新浪微博——文章正文内容1.9.5新浪微博——文章底部和页面底部1.9.6新浪微博——侧边栏本课程版权归北风网所有欢迎访问我们的官方网站www.ibeifeng.com</p> </div> <div class="mt-3 bg-white"> <div class="d-lg-block d-none px-3 px-lg-4 py-3 border-bottom text-center font-18"> 当前文档最多预览五页,下载文档查看全文 </div> <div class="detail-fixed-feature d-none d-lg-block" id="detailFixedFeatureBox"> <div class="px-3 px-lg-4 py-3 d-flex align-items-center justify-content-between fixed-feature-box" id="detailFixedFeature"> <div class="d-lg-flex d-none align-items-center"> <div> <a class="btn btn-outline-danger article-state" href="javascript:;" data-id="36323075" data-code="438274" data-title="html实例教程01.html5概述"> <span>侵权申诉</span> </a> <button type="button" class="btn btn-outline-secondary with-light ml-2" data-toggle="modal" data-target="#reportModal" data-id="36323075"><span>举报</span></button> </div> <nav class="d-flex align-items-center ml-4" id="anchorPoint"> <a 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