HTML is the abbreviation of HyperText Markup Language (Hypertext Markup Language), which is a combination of text and tags that constitute the basic structure of all web pages.
1. Popular browsers currently on the market
IE/Chrome/firefox/opera
Chrome/firefox/opera and IE 9/10 are all very compatible with HTML5
2. HTML tags
html tags all start with ""End of brackets
Commonly used attributes are: id, class, style, title
id: This attribute provides a name for the object pointed to by the label
class: This attribute provides a class name for the object
style: This attribute applies a corresponding css style
title: Give the object a title, which most browsers will prompt when the mouse passes over it.
We will use the tag in the subsequent Android development. Let's take a look at a use of the tag. , is also our helloword.
<html> <head> <title>first html</title> <!--refresh:刷新--> <meta http-equiv="refresh" content="1;url=http://blog.csdn.net/dawanganban'"> <!-- 表示每隔1秒向url地址刷新 --> <meta http-equiv="content-type" content="text/html;charset=utf-8"> <!--引入一个样式文件--> <link rel="stylesheet" type="text/css" href="style.css"> </head> <body> hello word <body> </html>
3. Important Marks
(1) Link
target="_black": Open the link in a new window
target="_selt": Default value, in the current window Open
(2) Image link
<a href="地址" border="0"><img src="test.jpg" alt="Xiaoqiang's road to HTML5 mobile development (1) - Introduction to HTML" ></a>
border attribute value: In order to remove the default border.
(3) Send an email
<a href="mailto:739299362@qq.com?subject=hello">发邮件</a> (4)锚点(在同一页面进行跳转) <a name="top">跳到这里</a> <a href="#top">跳到top</a>
(5) Table
<table border="1" width="60%" cellpadding="10" cellspacing="0"> <tr><td>表格一</td><td>表格二</td></tr><tr><td>BIAOGE</td><td>BIAOGE</td></tr> </table>
Alignment of the table
align attribute: horizontal alignment. Value: left (default): left/rignt/center
valign attribute: vertical alignment. Value: top/bottom (default)/middle
Irregular table
colspan attribute: merge horizontal cells (merge columns)
rowspan attribute: merge vertical cells (merge rows)
Table Can be nested
Complete definition of table
<table> <caption>主题</caption> 只能是0个或者1个 <thead>表头</thead> 只能是0个或者1个 <tfoot>表脚</tfoot> <tbody>表体</tbody> </table>
(6) Form
<form action="服务器端的一个程序" method="get/post"> <!--input标记--> <!--非input标记--> </form> 1)input标记: 文本输入框:<input type="text" name="username" value="缺省值"/><!--必须加name--> 提交按钮: <input type="submit" value="确认"/> 密码输入框:<input type="password" name="pwd"/> <!--必须加name--> 单选:<input type="radio" name="gender" value="m"/><!--必须加name和value--> <!--同一组name必须相同--> 多选:<input type="checkbox" name="interest" value="fishing"/> 重置:<input type="reset" value="取消"/> 普通按钮:<input type="button" value="点我吧"/> 上传文件:<input type="file" name="file1"/> 隐藏域:<input type="hidden" name="userId" value="123"> 2)非input标记
Drop-down list:
<select name="city" multiple="multiple"> <option value="bj">北京</option> <option value="wh">武汉</option> <option value="nj">南京</option> </select> <!--加上mutiple属性就成为多选了-->
Multi-line text input box:
<textarea name="desc" cols="" rows=""></textarea>
(7) List
Unordered list:
<ul> <li>item1</li> <li>item2</li> </ul>
Ordered list:
<ol> <li>item1</li> <li>item2</li> <ol>
(8) Frame