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前端基础HTML知识点汇总

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HTML 知识点汇总第一章HTML 基础知识1、HTML 简介HTML(Hypertext Markup Language) ,超文本标记语言,HTML 利用各种标记来标识文档的结构以及标识超链接的信息。它是从 SGML(Standard Generalized Markup Language,标准通用标识语言)中的一个子集演变而来的。2、HTML 的标记组成HTML 用于描述功能的符号称为“标记”。标记在使用时必须用尖括号“<>”括起来,而且是成对出现的,无斜杠的标记表示该标记的作用开始,有斜杠的标记表示该标记的作用结束。如、

等1) 单标记:有些标记能完整的表达标记里的意思,只须在尖括号中输入标记名即可,这类标记叫单标记。XHTML 中要求单标记也必须闭合,即在标记“>”前添加斜杠。常见的单标记如

等。2) 双标记:双标记有头有尾,且前面的标记与后面的标记保持一致,但在后面的标记前有斜线,语法形如:<标记>内容。例如:

段落

3) XHTML 要求所有标记均为小写,且所有标记属性必须添加双引号4) 标记对不能交叉3、HTML 基本结构网页标题1) 标记对不能放在<body>标记对中,同理,其它表示内容的标记也不能放在<head>标记对中2) <html></html>表示 HTML 语言,在<html></html>里面包含头部(<head></head>)和内容体(<body></body>)。3) HTML 注释表示为<!--注释内容-->第二章文字与图像1、设置文字字体、大小与颜色语法:<font face=”宋体” size=”1” color=”red”>文字</font>1) 设置文字的字体、大小、颜色需要使用<font>标签2) Face 属性设置文字字体,多种字体用逗号隔开3) Size 属性设置文字大小4) Color 属性设置文字颜色,参数值可以是 RGB 颜色值,如#000000,也可以用颜色的单词表示,如 red2、设置正文的标题语法:<h#>主题文字</h#>,其中“#”代表数字 1-6 中的任意一个,从数字 1 到数字 6,标题大小排列由大到小(数字越大,标题字号就越小)。3、设置段落语法:<p>这里表示段落</p>4、强制换行与不换行1) 强制换行:<br />2) 强制不换行:<nobr />5、字体标记1) 物理字体<b>…</b><u>…</u>设置成粗体增加下划线<i>…</i><s>…</s>设置成斜体增加删除线设置成下标字体<sup>…</sup><tt>…</tt>2) 逻辑字体<em>…</em><code>…</code><kbd>…</kbd>设置成上标字体<sub>…</sub>设置成打字机字体强调文字...</div></div><div class="pre-detail-bottom"><a class="pre-detail-more" href="javascript:;" kes-height="0">查看更多 <i class="icon-lower"></i></a></div></div></div><div class="noticeidtxt"><p>1、当您付费下载文档后,您只拥有了使用权限,并不意味着购买了版权,文档只能用于自身使用,不得用于其他商业用途(如 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