Home Web Front-end HTML Tutorial html学习整理-0311_html/css_WEB-ITnose

html学习整理-0311_html/css_WEB-ITnose

Jun 24, 2016 am 11:24 AM

    转了一年还是转回前端了。今天开始认认真真仔仔细细的学习前端内容。首先就是html啦。

    接触html比较晚,14年实习时候才真正接触了Java和html。现在学习的应该叫做html5了。整理一下今天所学的一些标签内容。

    首先说一下DNS:全称Domain Name System,域名系统。是因特网上作为域名和IP地址相互映射的一个分布式数据库。

    URL协议:规定URL地址的格式,URL地址就是网址。

                 规定格式:scheme://host.domain:port/path/filename

                               scheme--定义因特网服务的类型,最常见是http

                                   host--定义域主机,默认主机是www

                               domain--定义因特网域名,如w3school.com.cn

                                   port--定义主机端口号,默认端口号为80

                                   path--定义服务器上的路径,如果省略,则文档必须位于网站的根目录下

                              filename--定义文档/资源的名称

    页面标签:

               块级标签:div、p、ul、ol、dl、li、dt、h1-h6

               行级标签:span、strong、em等

               1.:此标签是定义编码格式。浏览器默认编码格式是中文,如果不设置属性值为UTF-8,会出现乱码情况。还可以通过name和content属性进行网页描述,主要针对网站SEO。

               2.标签:用法1:设置DNS预解析,如

                                   用法2:引入图标 如

                                   用法3:引入css样式 如

              3.标签中,若值为"len"表示页面内容以英语为主,若值为"zh-cn",则表示页面内容以中文为主,此属性有利于搜索引擎或者爬虫对页面的扫描。

              4.标签中,如何使一组radio只能同时选中一个值呢,就是将所有的radio标签中name属性值设为一样即可。

              5.

标签,比较规范的编写格式入下:

 1 <table> 2         <thead><!--此处为表头标签--> 3             <tr> 4                 <th>表头第一列</th> 5                 <th>表头第二列</th> 6             </tr> 7         </thead> 8         <tbody><!--此处为表内容标签--> 9             <tr>10                 <td>内容第一列</td>11                 <td>内容第二列</td>12             </tr>13         </tbody>14     </table>
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