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There are scores of developers who hate CSS; don’t get it, don’t want to get it, etc. Most of that is either down to inefficiencies within the language or misunderstanding of how to properly construct a website structure. I mostly love CSS but there are some parts of the language that I always hated, like having to repeat very similar selectors. That’s why I was so happy when I saw CSS :is ; a method of avoid duplication within your selector structure!
You all remember this mindless CSS repetition:
section h1,
section h2,
section h3,
article h1,
article h2,
article h3 {
/* styles here */
}
I always loathed having to do that — lots of maintenance cost and bloated CSS files. This is where :is comes to the rescue:
:is(section, article) :is(h1, h2, h3) {
/* styles here */
}
is: is a perfect summary of how a tiny addition to the CSS language can make a developer’s life just a bit easier!
The post CSS :is appeared first on David Walsh Blog.
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