The <svelte:head> element allows you to insert elements inside the <head> of your document. This is useful for things like <title> and <meta> tags, which are critical for good SEO.
Since those are quite hard to show in the context of this tutorial, we'll use it for a different purpose — loading stylesheets.
App.svelte
<script>
const themes = ['margaritaville', 'retrowave', 'spaaaaace', 'halloween'];
let selected = themes[0];
</script>
<svelte:head>
<link rel="stylesheet" href="/stylesheets/{selected}.css" />
</svelte:head>
<h1>Welcome to my site!</h1>In server-side rendering (SSR) mode, contents of
<svelte:head>are returned separately from the rest of your HTML.
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<script>
const themes = ['margaritaville', 'retrowave', 'spaaaaace', 'halloween'];
let selected = themes[0];
</script>
<h1>Welcome to my site!</h1>
<select bind:value={selected}><option disabled>choose a theme</option>
{#each themes as theme} <option>{theme}</option> {/each}</select>