Is there a way to use the @extend feature in CSS to inherit properties from one class to another? Imagine having two CSS files loading on a page in this order:
<link rel="stylesheet" href="/css/one.css" media="screen">
<link rel="stylesheet" href="/css/two.css" media="screen">
Where one.css contains the following class:
.foo {
color: red;
}
Can we achieve something like this in two.css:
.bar {
@extend .foo;
}
To achieve such customization, you will need either a pre- or post-processor or a CSS-in-JS solution.
Consider the following approaches:
.foo {
color: black;
background: yellow;
}
.bar {
color: red;
}
.baz {
color: blue;
}
<span class="foo">This is FOO</span>
<span class="foo bar">This is FOO + BAR</span>
<span class="foo baz">This is FOO + BAZ</span>
... or
:root {
--main-color: black;
}
.foo {
color: var(--main-color);
}
.bar {
--main-color: red;
}
<span class="foo">This is FOO</span>
<span class="foo bar">This is FOO + BAR</span>
Currently, pure CSS does not offer a feature like this. However, there is a way to achieve it using Sass with the @extend directive. In some cases, you can use comma-separated selectors as shown below:
.foo,.bar{
font-size:40px;
}
.bar{
color:red;
}
In this scenario, you are defining shared styles for .foo and .bar while also specifying a unique style (color:red) for .bar only.
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