HTML标签天天练1--<!DOCTYPE><meta><keyword><h><p><hr>-优快云博客

<wbr style="color:rgb(73,73,73); font-family:simsun; font-size:14px; line-height:21px; text-align:left; background-color:rgb(231,238,244)"><span style="color:rgb(73,73,73); font-family:simsun; font-size:14px; line-height:21px; text-align:left; background-color:rgb(231,238,244)"></span><wbr style="color:rgb(73,73,73); font-family:simsun; font-size:14px; line-height:21px; text-align:left; background-color:rgb(231,238,244)"><span style="color:rgb(73,73,73); font-family:simsun; font-size:14px; line-height:21px; text-align:left; background-color:rgb(231,238,244)">今天开始，夜风将在每篇文章中解释几个标签，与大家共同进步：</span> <div style="color:rgb(73,73,73); font-family:simsun; font-size:14px; line-height:21px; text-align:left; background-color:rgb(231,238,244)"> 1）<span style="color:#ED1C24; word-wrap:normal; word-break:normal"><!DOCTYPE></span>故名思意，这是一篇HTML文档的类型，为了定义每篇文档用什么代码规范，通常必须放在文档最首的位置，如：<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"></div> <div style="color:rgb(73,73,73); font-family:simsun; font-size:14px; line-height:21px; text-align:left; background-color:rgb(231,238,244)"> //这就代表本文档是遵循HTML4.01的规范，<span style="word-wrap:normal; word-break:normal"><!DOCTYPE>没有结束标签。</span> </div> <div style="color:rgb(73,73,73); font-family:simsun; font-size:14px; line-height:21px; text-align:left; background-color:rgb(231,238,244)"> <br> </div> <div style="color:rgb(73,73,73); font-family:simsun; font-size:14px; line-height:21px; text-align:left; background-color:rgb(231,238,244)"> 2）<span style="word-wrap:normal; word-break:normal"><span style="color:#FF0000; word-wrap:normal; word-break:normal"><meta></span>只存在于<head>头部内，此标签用于定义文档的元信息，以及编码类型。比如一些对搜索引擎的和更新频率的描述。如：</span> </div> <div style="color:rgb(73,73,73); font-family:simsun; font-size:14px; line-height:21px; text-align:left; background-color:rgb(231,238,244)"> <meta http-equiv="Content-Type" content="text/html; charset=gb18030">，编码类型为gb18030简体中文。</div> <div style="color:rgb(73,73,73); font-family:simsun; font-size:14px; line-height:21px; text-align:left; background-color:rgb(231,238,244)"> <br> </div> <div style="color:rgb(73,73,73); font-family:simsun; font-size:14px; line-height:21px; text-align:left; background-color:rgb(231,238,244)"> 3）<span style="color:#FF0000; word-wrap:normal; word-break:normal"><keyword></span>更是对各种引擎的针对性优化，把关键词有方向性的列出。与meta相同，放在head头部内。</div> <div style="color:rgb(73,73,73); font-family:simsun; font-size:14px; line-height:21px; text-align:left; background-color:rgb(231,238,244)"> <br> </div> <div style="color:rgb(73,73,73); font-family:simsun; font-size:14px; line-height:21px; text-align:left; background-color:rgb(231,238,244)"> 4）<span style="color:#FF0000; word-wrap:normal; word-break:normal"><h></span>内的文本，定义HTML的标题，通常默认有h1-h6六个，也可以通过自己在CSS样式中重新对每一个进行定义。</div> <div style="color:rgb(73,73,73); font-family:simsun; font-size:14px; line-height:21px; text-align:left; background-color:rgb(231,238,244)"> 5）<span style="color:#FF0000; word-wrap:normal; word-break:normal"><p></span>整句，<span style="word-wrap:normal; word-break:normal">用法相对简单，在前面的文章中提到过，就不再叙述了。</span> </div> <div style="color:rgb(73,73,73); font-family:simsun; font-size:14px; line-height:21px; text-align:left; background-color:rgb(231,238,244)"> <span style="word-wrap:normal; word-break:normal"><br></span> </div> <div id="aeaoofnhgocdbnbeljkmbjdmhbcokfdb-mousedown" style="color:rgb(73,73,73); font-family:simsun; font-size:14px; line-height:21px; text-align:left; background-color:rgb(231,238,244)"> <span style="word-wrap:normal; word-break:normal">6）</span><span style="word-wrap:normal; word-break:normal"><span style="color:#FF0000; word-wrap:normal; word-break:normal"><hr></span>横线符，因其在XHTML中，必须要有结束符号，所以我们在使用的确时候，一般都直接打上<hr/>。这样使用相对比较规范。此标签的width和align属性，不被推荐，需要定义的话最好在CSS中另行定义。</span> </div> </wbr></wbr>