Escape CSS class names

Written byPhuoc Nguyen

Created

17 May, 2021

Tags

CSS

CSS class names can't contain the `:` character. For example, it's not possible to declare the following class in CSS:

css

.lg:flex {
    ...;
}

However we can use the `\` character to correct it:

css

.lg\:flex {
    ...;
}

The class name is usable in HTML as usual:

html

<div class="lg:flex">...</div>

Using `\` to escape CSS class names has been used a lot in some CSS frameworks such as Tailwind.

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Escape CSS class names

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