HTML5学习笔记HTML知识备忘录_html/css_WEB-ITnose-HTML Tutorial-php.cn

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HTML5学习笔记HTML知识备忘录_html/css_WEB-ITnose

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Jun 21, 2016 am 08:57 AM

声明：本文大多数知识是从慕课网摘录而来，加了一点自己的注释

1.m> 斜体

2.在 html 代码中输入回车、空格都是没有作用的。在html文本中想输入回车换行，就必须输入

3.可恶的空格在HTML中只能这样写→ ;

单选框若type="checkbox" 则为复选框

5.初识CSS

css 样式由选择符和声明组成，而声明又由属性和值组成，如下图所示：

CSS

选择符：又称选择器，指明网页中要应用样式规则的元素，如本例中是网页中所有的段（p）的文字将变成蓝色，而其他的元素（如ol）不会受到影响。

6. CSS中的注释

就像在Html的注释一样，在CSS中也有注释语句：用/注释语句/来标明（Html中使用)。就像下面代码：

CSS注释

7.嵌入式

嵌入式css样式，就是可以把css样式代码写在标签之间。如下面代码实现把三个标签中的文字设置为红色：

嵌入式css样式必须写在之间，并且一般情况下嵌入式css样式写在

之间 8. 外部式

外部式css样式(也可称为外联式)就是把css代码写一个单独的外部文件中，这个css样式文件以“.css”为扩展名，在

内（不是在

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