CSS-in-JS patterns with Svelte

Introduction

CSS-in-JS lets you write styles directly inside your Svelte components. This keeps styles close to the code they affect, making your app easier to understand and maintain.

You want to style a Svelte component with styles that depend on component state or props.

You want to avoid global CSS conflicts by scoping styles to components.

You want to dynamically change styles based on user interaction or data.

You want to keep your styles and markup together for better organization.

You want to use JavaScript variables or logic to create styles.

Syntax

Svelte

<style>
  /* Normal CSS here */
</style>

<script>
  let color = 'blue';
</script>

<div style="color: {color}">Text</div>

Svelte supports scoped styles inside