HTML5第二节 - 追梦-dream
第二回合:HTML5的新特性
与之前的HTML4.01相比,HTML5增加了非常多的改变:
① 新的语义元素:
② 新的元素特性:增加新的元素属性、表单元素、验证功能等内容。
③ 多媒体:增加
④ 2D/3D 绘图:增加
⑤ 存储:增加在线、离线存储功能。
⑥ 连通性:增加客户端与服务器交互的两个内容:Web Sockets(客户端与服务器持久连接)和Server-sent events(服务器推送数据)等。
⑦ 集成:提供Web Workers、History API、requestAnimationFrame、地理位置等强大的功能。
⑧ 设备访问:提供对摄像头、移动设备的支持。
⑨ CSS3样式:提供了新的背景样式特性、动画、边框等样式。
下面我们用实例来说明下各个标签的使用以及h5与c3的配合。
html代码如下:
<span style="color: #0000ff;"><span style="color: #ff00ff;">DOCTYPE html</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">html</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">head</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">meta </span><span style="color: #ff0000;">charset</span><span style="color: #0000ff;">="utf-8"</span> <span style="color: #0000ff;">/></span> <span style="color: #0000ff;"><span style="color: #800000;">title</span><span style="color: #0000ff;">></span>HTML5<span style="color: #0000ff;"></span><span style="color: #800000;">title</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">link </span><span style="color: #ff0000;">rel</span><span style="color: #0000ff;">="stylesheet"</span><span style="color: #ff0000;"> href</span><span style="color: #0000ff;">="html5.css"</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">head</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">body</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">header </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="show"</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">h1</span><span style="color: #0000ff;">></span>Header<span style="color: #0000ff;"></span><span style="color: #800000;">h1</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">h2</span><span style="color: #0000ff;">></span>Subtitle<span style="color: #0000ff;"></span><span style="color: #800000;">h2</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">header</span><span style="color: #0000ff;">></span><span style="color: #008000;"><!--</span><span style="color: #008000;"> 头部结束 </span><span style="color: #008000;">--></span> <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">id</span><span style="color: #0000ff;">="container"</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">nav</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">h3</span><span style="color: #0000ff;">></span>Nav<span style="color: #0000ff;"></span><span style="color: #800000;">h3</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">a </span><span style="color: #ff0000;">href</span><span style="color: #0000ff;">=""</span><span style="color: #0000ff;">></span>HTML5<span style="color: #0000ff;"></span><span style="color: #800000;">a</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">a </span><span style="color: #ff0000;">href</span><span style="color: #0000ff;">=""</span><span style="color: #0000ff;">></span>CSS3<span style="color: #0000ff;"></span><span style="color: #800000;">a</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">a </span><span style="color: #ff0000;">href</span><span style="color: #0000ff;">=""</span><span style="color: #0000ff;">></span>Javascript<span style="color: #0000ff;"></span><span style="color: #800000;">a</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">nav</span><span style="color: #0000ff;">></span><span style="color: #008000;"><!--</span><span style="color: #008000;"> 导航链接部分 </span><span style="color: #008000;">--></span> <span style="color: #0000ff;"><span style="color: #800000;">section</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">article</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">header</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">h1</span><span style="color: #0000ff;">></span>Article Header<span style="color: #0000ff;"></span><span style="color: #800000;">h1</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">header</span><span style="color: #0000ff;">></span><span style="color: #008000;"><!--</span><span style="color: #008000;"> 定义头部 </span><span style="color: #008000;">--></span> <span style="color: #0000ff;"><span style="color: #800000;">p</span><span style="color: #0000ff;">></span>Lorem ipsum dolor HTML5 nunc aut nunquam sit amet, consectetur adipiscing elit. Vivamus at est eros, vel fringilla urna.<span style="color: #0000ff;"></span><span style="color: #800000;">p</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">p</span><span style="color: #0000ff;">></span>Per inceptos himenaeos. Quisque feugiat, justo at vehicula pellentesque, turpis lorem dictum nunc.<span style="color: #0000ff;"></span><span style="color: #800000;">p</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">footer</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">h2</span><span style="color: #0000ff;">></span>Article Footer<span style="color: #0000ff;"></span><span style="color: #800000;">h2</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">footer</span><span style="color: #0000ff;">></span><span style="color: #008000;"><!--</span><span style="color: #008000;"> 定义尾部 </span><span style="color: #008000;">--></span> <span style="color: #0000ff;"></span><span style="color: #800000;">article</span><span style="color: #0000ff;">></span><span style="color: #008000;"><!--</span><span style="color: #008000;"> 定义文章 </span><span style="color: #008000;">--></span> <span style="color: #0000ff;"><span style="color: #800000;">article</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">header</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">h1</span><span style="color: #0000ff;">></span>Article Header<span style="color: #0000ff;"></span><span style="color: #800000;">h1</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">header</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">p</span><span style="color: #0000ff;">></span>HTML5: "Lorem ipsum dolor nunc aut nunquam sit amet, consectetur adipiscing elit. Vivamus at est eros, vel fringilla urna. Pellentesque odio<span style="color: #0000ff;"></span><span style="color: #800000;">p</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">footer</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">h2</span><span style="color: #0000ff;">></span>Article Footer<span style="color: #0000ff;"></span><span style="color: #800000;">h2</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">footer</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">article</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">section</span><span style="color: #0000ff;">></span><span style="color: #008000;"><!--</span><span style="color: #008000;"> 定义文档中的节 </span><span style="color: #008000;">--></span> <span style="color: #0000ff;"><span style="color: #800000;">aside</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">h3</span><span style="color: #0000ff;">></span>Aside<span style="color: #0000ff;"></span><span style="color: #800000;">h3</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">p</span><span style="color: #0000ff;">></span>do you love this case? if you want make friends with me ,you can add my qq: 1125911451,thank you for your join.<span style="color: #0000ff;"></span><span style="color: #800000;">p</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">img </span><span style="color: #ff0000;">src</span><span style="color: #0000ff;">="lian.jpg"</span><span style="color: #ff0000;"> alt</span><span style="color: #0000ff;">=""</span><span style="color: #ff0000;"> width</span><span style="color: #0000ff;">="220"</span><span style="color: #ff0000;"> height</span><span style="color: #0000ff;">="250"</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">aside</span><span style="color: #0000ff;">></span><span style="color: #008000;"><!--</span><span style="color: #008000;"> 定义侧边栏目 </span><span style="color: #008000;">--></span> <span style="color: #0000ff;"><span style="color: #800000;">footer</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">h2</span><span style="color: #0000ff;">></span>Footer<span style="color: #0000ff;"></span><span style="color: #800000;">h2</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">footer</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">body</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">html</span><span style="color: #0000ff;">><br><br>css代码如下:<br></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>
<span style="color: #800000;">body </span>{<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;">#CCCCCC</span>;<span style="color: #ff0000;"> font-family</span>:<span style="color: #0000ff;">Geneva,Arial,Helvetica,sans-serif</span>;<span style="color: #ff0000;"> margin</span>:<span style="color: #0000ff;"> 0px auto</span>;<span style="color: #ff0000;"> max-width</span>:<span style="color: #0000ff;">900px</span>;<span style="color: #ff0000;"> border</span>:<span style="color: #0000ff;">solid</span>;<span style="color: #ff0000;"> border-color</span>:<span style="color: #0000ff;">#FFFFFF</span>; }<span style="color: #800000;"> header </span>{<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;"> #F47D31</span>;<span style="color: #ff0000;"> display</span>:<span style="color: #0000ff;">block</span>;<span style="color: #ff0000;"> color</span>:<span style="color: #0000ff;">#FFFFFF</span>;<span style="color: #ff0000;"> text-align</span>:<span style="color: #0000ff;">center</span>; }<span style="color: #800000;"> header h2 </span>{<span style="color: #ff0000;"> margin</span>:<span style="color: #0000ff;"> 0px</span>; }<span style="color: #800000;"> h1 </span>{<span style="color: #ff0000;"> font-size</span>:<span style="color: #0000ff;"> 72px</span>;<span style="color: #ff0000;"> margin</span>:<span style="color: #0000ff;"> 0px</span>; }<span style="color: #800000;"> h2 </span>{<span style="color: #ff0000;"> font-size</span>:<span style="color: #0000ff;"> 24px</span>;<span style="color: #ff0000;"> margin</span>:<span style="color: #0000ff;"> 0px</span>;<span style="color: #ff0000;"> text-align</span>:<span style="color: #0000ff;">center</span>;<span style="color: #ff0000;"> color</span>:<span style="color: #0000ff;"> #F47D31</span>; }<span style="color: #800000;"> h3 </span>{<span style="color: #ff0000;"> font-size</span>:<span style="color: #0000ff;"> 18px</span>;<span style="color: #ff0000;"> margin</span>:<span style="color: #0000ff;"> 0px</span>;<span style="color: #ff0000;"> text-align</span>:<span style="color: #0000ff;">center</span>;<span style="color: #ff0000;"> color</span>:<span style="color: #0000ff;"> #F47D31</span>; }<span style="color: #800000;"> h4 </span>{<span style="color: #ff0000;"> color</span>:<span style="color: #0000ff;"> #F47D31</span>;<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;"> #fff</span>;<span style="color: #ff0000;"> -webkit-box-shadow</span>:<span style="color: #0000ff;"> 2px 2px 20px #888</span>;<span style="color: #ff0000;"> -webkit-transform</span>:<span style="color: #0000ff;"> rotate(-45deg)</span>;<span style="color: #ff0000;"> -moz-box-shadow</span>:<span style="color: #0000ff;"> 2px 2px 20px #888</span>;<span style="color: #ff0000;"> -moz-transform</span>:<span style="color: #0000ff;"> rotate(-45deg)</span>;<span style="color: #ff0000;"> position</span>:<span style="color: #0000ff;"> absolute</span>;<span style="color: #ff0000;"> padding</span>:<span style="color: #0000ff;"> 0px 150px</span>;<span style="color: #ff0000;"> top</span>:<span style="color: #0000ff;"> 50px</span>;<span style="color: #ff0000;"> left</span>:<span style="color: #0000ff;"> -120px</span>;<span style="color: #ff0000;"> text-align</span>:<span style="color: #0000ff;">center</span>; }<span style="color: #800000;"> nav </span>{<span style="color: #ff0000;"> display</span>:<span style="color: #0000ff;">block</span>;<span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">25%</span>;<span style="color: #ff0000;"> float</span>:<span style="color: #0000ff;">left</span>; }<span style="color: #800000;"> nav a:link, nav a:visited </span>{<span style="color: #ff0000;"> display</span>:<span style="color: #0000ff;"> block</span>;<span style="color: #ff0000;"> border-bottom</span>:<span style="color: #0000ff;"> 3px solid #fff</span>;<span style="color: #ff0000;"> padding</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;"> text-decoration</span>:<span style="color: #0000ff;"> none</span>;<span style="color: #ff0000;"> font-weight</span>:<span style="color: #0000ff;"> bold</span>;<span style="color: #ff0000;"> margin</span>:<span style="color: #0000ff;"> 5px</span>; }<span style="color: #800000;"> nav a:hover </span>{<span style="color: #ff0000;"> color</span>:<span style="color: #0000ff;"> white</span>;<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;"> #F47D31</span>; }<span style="color: #800000;"> nav h3 </span>{<span style="color: #ff0000;"> margin</span>:<span style="color: #0000ff;"> 15px</span>;<span style="color: #ff0000;"> color</span>:<span style="color: #0000ff;"> white</span>; }<span style="color: #800000;"> #container </span>{<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;"> #888</span>; }<span style="color: #800000;"> section </span>{<span style="color: #ff0000;"> display</span>:<span style="color: #0000ff;">block</span>;<span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">50%</span>;<span style="color: #ff0000;"> float</span>:<span style="color: #0000ff;">left</span>; }<span style="color: #800000;"> article </span>{<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;"> #eee</span>;<span style="color: #ff0000;"> display</span>:<span style="color: #0000ff;">block</span>;<span style="color: #ff0000;"> margin</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;"> padding</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;"> -webkit-border-radius</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;"> -moz-border-radius</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;"> border-radius</span>:<span style="color: #0000ff;"> 10px</span>; }<span style="color: #800000;"> article header </span>{<span style="color: #ff0000;"> -webkit-border-radius</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;"> -moz-border-radius</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;"> border-radius</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;"> padding</span>:<span style="color: #0000ff;"> 5px</span>; }<span style="color: #800000;"> article footer </span>{<span style="color: #ff0000;"> -webkit-border-radius</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;"> -moz-border-radius</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;"> border-radius</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;"> padding</span>:<span style="color: #0000ff;"> 5px</span>; }<span style="color: #800000;"> article h1 </span>{<span style="color: #ff0000;"> font-size</span>:<span style="color: #0000ff;"> 18px</span>; }<span style="color: #800000;"> aside </span>{<span style="color: #ff0000;"> display</span>:<span style="color: #0000ff;">block</span>;<span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">25%</span>;<span style="color: #ff0000;"> float</span>:<span style="color: #0000ff;">left</span>; }<span style="color: #800000;"> aside h3 </span>{<span style="color: #ff0000;"> margin</span>:<span style="color: #0000ff;"> 15px</span>;<span style="color: #ff0000;"> color</span>:<span style="color: #0000ff;"> white</span>; }<span style="color: #800000;"> aside p </span>{<span style="color: #ff0000;"> margin</span>:<span style="color: #0000ff;"> 15px</span>;<span style="color: #ff0000;"> color</span>:<span style="color: #0000ff;"> white</span>;<span style="color: #ff0000;"> font-weight</span>:<span style="color: #0000ff;"> bold</span>;<span style="color: #ff0000;"> font-style</span>:<span style="color: #0000ff;"> italic</span>; }<span style="color: #800000;"> footer </span>{<span style="color: #ff0000;"> clear</span>:<span style="color: #0000ff;"> both</span>;<span style="color: #ff0000;"> display</span>:<span style="color: #0000ff;"> block</span>;<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;"> #F47D31</span>;<span style="color: #ff0000;"> color</span>:<span style="color: #0000ff;">#FFFFFF</span>;<span style="color: #ff0000;"> text-align</span>:<span style="color: #0000ff;">center</span>;<span style="color: #ff0000;"> padding</span>:<span style="color: #0000ff;"> 15px</span>; }<span style="color: #800000;"> footer h2 </span>{<span style="color: #ff0000;"> font-size</span>:<span style="color: #0000ff;"> 14px</span>;<span style="color: #ff0000;"> color</span>:<span style="color: #0000ff;"> white</span>; } <span style="color: #008000;">/*</span><span style="color: #008000;"> links </span><span style="color: #008000;">*/</span><span style="color: #800000;"> a </span>{<span style="color: #ff0000;"> color</span>:<span style="color: #0000ff;"> #F47D31</span>; }<span style="color: #800000;"> a:hover </span>{<span style="color: #ff0000;"> text-decoration</span>:<span style="color: #0000ff;"> underline</span>; }<span style="color: #800000;"> .show </span>{<span style="color: #ff0000;"> -webkit-animation</span>:<span style="color: #0000ff;"> show 25s ease-out infinite</span>;<span style="color: #ff0000;"> -moz-animation</span>:<span style="color: #0000ff;"> show 25s ease-out infinite</span>;<span style="color: #ff0000;"> -o-animation</span>:<span style="color: #0000ff;"> show 25s ease-out infinite</span>;<span style="color: #ff0000;"> animation</span>:<span style="color: #0000ff;"> show 25s ease-out infinite</span>;<span style="color: #ff0000;"> -webkit-transform</span>:<span style="color: #0000ff;"> translate3d(0, 0, 0)</span>;<span style="color: #ff0000;"> -ms-transform</span>:<span style="color: #0000ff;"> translate3d(0, 0, 0)</span>;<span style="color: #ff0000;"> -o-transform</span>:<span style="color: #0000ff;"> translate3d(0, 0, 0)</span>;<span style="color: #ff0000;"> transform</span>:<span style="color: #0000ff;"> translate3d(0, 0, 0)</span>; }<span style="color: #008000;">/*</span><span style="color: #008000;">调用动画</span><span style="color: #008000;">*/</span><span style="color: #800000;"> @-webkit-keyframes show </span>{<span style="color: #ff0000;"> 0% { background</span>:<span style="color: #0000ff;"> #f47d31</span>;<span style="color: #ff0000;"> color</span>:<span style="color: #0000ff;"> white</span>; }<span style="color: #800000;"> 50% </span>{<span style="color: #ff0000;"> background</span>:<span style="color: #0000ff;"> #e0a014</span>;<span style="color: #ff0000;"> color</span>:<span style="color: #0000ff;"> #a3d9ff</span>; }<span style="color: #800000;"> 100% </span>{<span style="color: #ff0000;"> background</span>:<span style="color: #0000ff;"> purple</span>;<span style="color: #ff0000;"> color</span>:<span style="color: #0000ff;"> pink</span>; }<span style="color: #800000;"> }</span><span style="color: #008000;">/*</span><span style="color: #008000;">定义动画</span><span style="color: #008000;">*/<br>效果图如下图所示<img src="/static/imghw/default1.png" data-src="http://images2015.cnblogs.com/blog/908680/201604/908680-20160407143653765-667660369.png" class="lazy" alt=""></span>
我相信 现在大家对h5已经产生了浓厚的兴趣,那么现在可以自己动手去撸代码,用h5开发页面,在下一节里我将继续为大家讲解h5的应用
<span style="color: #0000ff;"> </span>

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L'article traite du HTML & lt; Progress & GT; élément, son but, son style et ses différences par rapport au & lt; mètre & gt; élément. L'objectif principal est de l'utiliser & lt; Progress & gt; pour l'achèvement des tâches et & lt; mètre & gt; pour stati

L'article discute de l'utilisation des attributs de validation de formulaire HTML5 comme les limites requises, motifs, min, max et longueurs pour valider la saisie de l'utilisateur directement dans le navigateur.

L'article traite du & lt; iframe & gt; L'objectif de Tag dans l'intégration du contenu externe dans les pages Web, ses utilisations courantes, ses risques de sécurité et ses alternatives telles que les balises d'objet et les API.

L'article traite du HTML & lt; mètre & gt; élément, utilisé pour afficher des valeurs scalaires ou fractionnaires dans une plage, et ses applications courantes dans le développement Web. Il différencie & lt; mètre & gt; De & lt; Progress & gt; et ex

L'article examine les meilleures pratiques pour assurer la compatibilité des navigateurs de HTML5, en se concentrant sur la détection des fonctionnalités, l'amélioration progressive et les méthodes de test.

L'article traite de la balise Meta de la fenêtre, essentielle pour la conception Web réactive sur les appareils mobiles. Il explique comment une utilisation appropriée garantit une mise à l'échelle optimale du contenu et une interaction utilisateur, tandis que la mauvaise utilisation peut entraîner des problèmes de conception et d'accessibilité.

Cet article explique le html5 & lt; time & gt; élément de représentation sémantique de date / heure. Il souligne l'importance de l'attribut DateTime pour la lisibilité à la machine (format ISO 8601) à côté du texte lisible par l'homme, stimulant AccessIbilit
