CSS margin collapsing – what it is and why should I care

栏目: IT技术 · 发布时间: 4年前

内容简介:In CSS margin-collapsing refers to the fact that the margins that are next to each other are colliding… but only vertically.Yeah, it's one of thoseLet's first take two divs that are one next to each other on the horizontal axis. If we have a

In CSS margin-collapsing refers to the fact that the margins that are next to each other are colliding… but only vertically.

Yeah, it's one of those brainfuck moments in CSS.

Let's first take two divs that are one next to each other on the horizontal axis. If we have a margin: 25px for both divs, and the width: 100px then, as expected, the required width will be 300px.

CSS margin collapsing – what it is and why should I care

However, if we try to do the same with the divs are arranged vertically then the total needed space will be 275px, instead of the expected 300px.

CSS margin collapsing – what it is and why should I care

And this is because the vertical margins of the elements are collapsing.

But, what if the margins are of different sizes? What if one div has margin: 25px and the other has a margin: 40px? Well, in this case just the largest of the two margins will be applied (40px in our case).

And what about negative margins? The rule will be applied when both margins are negative (vertically), but not when one margin is negative and the other is positive.

If you want to learn more take you can a look at:

I hope you have enjoyed this article and if you would like to get more articles about React and frontend development you can always sign up for my email list.


以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持 码农网

查看所有标签

猜你喜欢:

本站部分资源来源于网络,本站转载出于传递更多信息之目的,版权归原作者或者来源机构所有,如转载稿涉及版权问题,请联系我们

全栈开发之道

全栈开发之道

和凌志 / 电子工业出版社 / 68.00元

全栈(Full Stack)是一种全新的以前端为主导的框架,框架选型聚焦在MEAN(MongoDB、Express、AngularJS、Node.js)上。选用MEAN全栈技术,可以快速地实现敏捷开发,尤其是到了产品的运营阶段,其优势表现得非常明显。本书主要介绍MEAN全栈技术,分为入门篇、基础篇和实战篇,入门篇对全栈进行了概述,基础篇重点介绍了全栈的四个主要技术,即MongoDB、Express......一起来看看 《全栈开发之道》 这本书的介绍吧!

图片转BASE64编码
图片转BASE64编码

在线图片转Base64编码工具

Base64 编码/解码
Base64 编码/解码

Base64 编码/解码

正则表达式在线测试
正则表达式在线测试

正则表达式在线测试