Replacing an element with a generated value.

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content:value|content: value ;
content:normalcontent: normal;
content:nonecontent: none;
content:no-open-quotecontent: no-open-quote;
content:no-close-quotecontent: no-close-quote;
content:url()content: url();
content:linear-gradient()content: linear-gradient();
content:image-set()content: image-set();
content:counter()content: counter();
content:attr()content: attr();

Basic usage

The most typical example is using a pseudo-element to add an indicator after external links.

Discover high-quality products at XYZ Corporation. Visit our website for exclusive deals and unbeatable prices.

<article class="content:'\00a0↗'_:where(a[href^='http'])::after">
<a target="_blank" href="">our website</a>

Resolve whitespaces in the value

Whitespace is used in the class attribute of the template to separate different classes. To replace whitespaces with non-breaking spaces \00a0.

<a class="content:'\00a0↗'::after"></a>

Is it not very kind to use \00a0 in markup?

Predefine your content variables without \00a0.

/** @type {import('@master/css').Config} */
export default {
variables: {
content: {
external: ' '

Apply your custom fonts:

<a class="content:external::after"></a>

Conditionally apply

Apply styles based on different states using selectors and conditional queries.

<div class="content:normal:hover content:normal@sm content:normal@dark content:normal@print"></div>

Providing performance benefits by limiting calculations of layout.


Setting the mouse cursor style.

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