HTML元素

　　元素是指从开始标签到结束标签的所有代码.

开始(开放)标签	元素内容	结束(闭合)标签
	this is my web page

　　没有内容的 HTML 元素被称为空元素。空元素是在开始标签中关闭的。

就是没有关闭标签的空元素（
标签定义换行）。

在 XHTML、XML 以及未来版本的 HTML 中，所有元素都必须被关闭。

在开始标签中添加斜杠，比如
，是关闭空元素的正确方法，HTML、XHTML 和 XML 都接受这种方式。

即使
在所有浏览器中都是有效的，但使用
其实是更长远的保障。

HTML元素语法

　　元素的内容是开始标签与结束标签之间的内容

　　空元素在开始标签中进行关闭

　　大多数HTML元素可拥有属性

嵌套的HTML元素

　　大多数的HTML元素都是可以嵌套的

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HTML属性

　　1. 标签可以拥有属性为元素提供更多的信息

　　2. 属性以键值对的形式出现, 如: href = "www.cnblogs.www/winsoncheung"

　　3. 常用的标签属性:

:align 对其方式

:bgcolor body部分背景颜色

　　　　:target 规定在何处打开连接

4. 通用属性:

class	规定元素的类名
id	规定元素唯一ID
style	规定元素的样式
title	规定元素的额外信息

HTML格式化

文本格式化标签:

标签	描述
	定义粗体文本。
	定义大号字。
	定义着重文字。
	定义斜体字。
all>	定义小号字。
	定义加重语气。
	定义下标字。
	定义上标字。
	定义插入字。
	定义删除字。
	不赞成使用。使用 ~~代替。~~
	不赞成使用。使用 ~~代替。~~
	不赞成使用。使用样式（style）代替。

“计算机输出”标签:

标签	描述
	定义计算机代码。
	定义键盘码。
	定义计算机代码样本。
	定义打字机代码。
	定义变量。
	定义预格式文本。
<listing>	不赞成使用。使用代替。
</td><td style="margin-left: 30px">不赞成使用。使用 <pre class="brush:php;toolbar:false;"> 代替。</td></tr><tr style="margin-left: 30px"><td style="margin-left: 30px"><xmp></td><td style="margin-left: 30px">不赞成使用。使用 <pre class="brush:php;toolbar:false;"> 代替。</td></tr></tbody></table><p style="margin-left: 30px; text-align: left;"><a href="http://www.php.cn/wiki/231.html" target="_blank">引用</a>、引用和术语定义</p><table style="margin-left: 30px; height: 261px; width: 331px"><tbody style="margin-left: 30px"><tr style="margin-left: 30px" class="firstRow"><th style="margin-left: 30px">标签</th><th style="margin-left: 30px">描述</th></tr><tr style="margin-left: 30px"><td style="margin-left: 30px"><abbr></td><td style="margin-left: 30px">定义缩写。</td></tr><tr style="margin-left: 30px"><td style="margin-left: 30px"><acronym></td><td style="margin-left: 30px">定义首字母缩写。</td></tr><tr style="margin-left: 30px"><td style="margin-left: 30px"><address></td><td style="margin-left: 30px">定义地址。</td></tr><tr style="margin-left: 30px"><td style="margin-left: 30px"><bdo></td><td style="margin-left: 30px">定义文字方向。</td></tr><tr style="margin-left: 30px"><td style="margin-left: 30px"><blockquote></td><td style="margin-left: 30px">定义长的引用。</td></tr><tr style="margin-left: 30px"><td style="margin-left: 30px"><q></td><td style="margin-left: 30px">定义短的引用语。</td></tr><tr style="margin-left: 30px"><td style="margin-left: 30px"><cite></td><td style="margin-left: 30px">定义引用、引证。</td></tr><tr style="margin-left: 30px"><td style="margin-left: 30px"><dfn></td><td style="margin-left: 30px">定义一个定义项目。</td></tr></tbody></table><p style="margin-left: 30px; text-align: left;"> 代码示例:</p><pre class="brush:html;toolbar:false;"><!DOCTYPE html><html><head> <meta charset="UTF-8"> <title id="1223">格式化</title></head><body> <b>My name is Winson</b> <br/> <big>Welcome to my blog~</big> <br/> <i>Hello, visitor!</i> <br/> <small>我很小, 你看不见看不见</small> <br/> <strong>太显眼了</strong> <br/> 大家好<sub>欢迎</sub>来到 <br/> 大家好<sup>欢迎</sup>来到 <br/> <ins>Come on! 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HTML5学习笔记（二）-元素,属性,格式化具体介绍

:align 对其方式

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