Home Web Front-end HTML Tutorial 将字符大小font-size设置为100%的作用_html/css_WEB-ITnose

将字符大小font-size设置为100%的作用_html/css_WEB-ITnose

Jun 24, 2016 am 11:30 AM

将字符大小font-size设置为100%的作用:
在代码中往往有些让人感觉奇怪的代码却能够起到非同寻常的作用,下面就介绍一个关于字体大小的设置问题。
在一些css代码中会有以下代码:

 

h1,h2,h3,h4,h5,h6 {font-size:100%;font-weight:normal;} input,select,textarea,samp {font-size:100%;} 
Copy after login

 

在以上代码中讲相应元素的字体大小设置为100%,其实这是由一定理由的。大家知道font-size具有继承性,也就是说子元素会继承父元素的字体大小,但是对于这样的标签却不是这样的,它们会采用自己固有默认的字体展现方式,如果将它们的font-size设置为100%,那么就会参考父元素的字体大小了,于是就实现了继承效果。

原文地址是:http://www.softwhy.com/forum.php?mod=viewthread&tid=12807

更多内容可以参阅:http://www.softwhy.com/divcss/

 

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