Linking css file with svelte component

I am trying to link css file with my svelte kit component. I used link element to link it but it did not work. If I made internal style the css style will be applied to the component but when I try to link the component with css file it did not work and the style did not apply

<svelte:head><link href="../style/index.css"></svelte:head><h1>Welcome to your library project</h1><p>Create your package using @sveltejs/package and preview/showcase your work with SvelteKit</p><p>Visit <a href="https://kit.svelte.dev">kit.svelte.dev</a> to read the documentation</p>`