html学习整理-0311_html/css_WEB-ITnose
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.

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