Currently in Svelte Kit and Routify, applying styles per page to the body doesn't work. You can't use :global(body) since the style tags aren't removed and reapplied on route change. svelte-body handles that for you. It's available as an action or component.

Install

npm i svelte-body -D

This library is made for Svelte 5, if you'd like to use Svelte 3/4 checkout v1.

Usage

Just like in regular html you can apply classes with class="" and styles with style="".

<script>
	import { Body } from 'svelte-body';
</script>

<Body class="some classes" style="color: blue" />

Alternativley you can use a style object like so:

<script>
	import { Body } from 'svelte-body';

	const style = {
		backgroundColor: 'violet',
		color: 'white',
		'--cool-css-prop': '😎',
	};
</script>

<Body {style} />

We use clsx under the hood, which allows you to pass different shapes and only have truthy names applied as classes. Read me about it on their docs.

<script>
	import { classList } from 'svelte-body';

	let isBlue = $state(true);
</script>

<Body class="red green blue" />
<Body class={{ red: true, blue: isBlue }} />
<Body class={['red', isBlue && 'blue']} />
<Body class={['red', { blue: isBlue }]} />

Actions

We also provide a classList and style action, which can be used on <svelte:body /> (or any other element).

classList

<script>
    import { classList } from 'svelte-body';
</script>

<svelte:body use:classList={"red green blue"} />
<svelte:body use:classList={{ red: true, blue: isBlue }} />
<svelte:body use:classList={['red', isBlue && 'blue']} />
<svelte:body use:classList={[ 'red', { blue: isBlue } ]} />

style

<script>
	import { style } from 'svelte-body';
</script>

<svelte:body use:style={'background-color: blue;'} />

It can also take an object:

<script>
	import { style } from 'svelte-body';
</script>

<svelte:body
	use:style={{ backgroundColor: 'blue', '--cool-css-prop': '😎' }} />

Migrating from v1 to v2

Svelte 5 is now required
We updated to clsx v2

Read the full changelog.

Support

Join the discord
Create a issue on the github

FAQs

What is svelte-body?

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Package last updated on 21 Oct 2024

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Install

svelte-body

Svelte Body

Install

Usage

Actions

Migrating from v1 to v2

Support

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