Detailed introduction about sibling

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Release: 2017-06-11 09:14:09
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How the sibling selector can keep CSS readable while completing complex design requirements. This is one of the examples in the web front-end development process that starts simple and gradually becomes more complex: applying vertical margins to all elements in an article ( vertical margins), such as blog posts compiled from complex markdown. In most cases, you have to deal with a lot of exceptions and correlations. For example, titles and images usually require more white space above and below them, but if two images are next to each other, the white space between the two images will change less. The direct distance between the h2 tag and the h3 tag is smaller than the distance between the two h2 tags. When the original author first started doing front-end a few years ago, all these exceptions and dependencies always resulted in complex code, visual inconsistencies and unexpected behavior. I googled many times why margin-top doesn’t work. The first step: The simple html is as follows:

Hello World

1. Example code for sibling selector to implement vertical margins

Detailed introduction about sibling

##Introduction: Use CSS sibling selectors to complete the design of complex vertical margins (vertical margins). The code is as follows

2. jQuery imitates radio button selection effect example code

Detailed introduction about sibling

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    Introduction: nextSibling attribute: This attribute represents the next node of the current node; if there is no node at the same level, null is returned; previousSibling attribute: This attribute has the opposite effect to the nextSibling attribute. Next I will introduce it in detail. If you are interested, you may wish to learn more. It may be helpful to you

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