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HomeWeb Front-endHTML TutorialHTML+CSS学习笔记(7)- CSS样式基本知识_html/css_WEB-ITnose

内联式css样式,直接写在现有的HTML标签中

CSS样式可以写在哪些地方呢?从CSS样式代码插入的形式来看基本可以分为以下3种:内联式、嵌入式和外部式三种。

内联式css样式表就是把css代码直接写在现有的HTML标签中,如下面代码:

<p style="color:red">这里文字是红色。</p>

注意要写在元素的开始标签里,下面这种写法是错误的:

<p>这里文字是红色。</p style="color:red">

并且css样式代码要写在双引号中,如果有多条css样式代码设置可以写在一起,中间用分号隔开。如下代码:

<p style="color:red;font-size:12px">这里文字是红色。</p>

嵌入式css样式,写在当前的文件中

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:

<style type="text/css">span{color:red;}</style>

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。

外部式css样式,写在单独的一个文件中

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(不是在代码的前面(实际开发中也是这么写的)。

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