> Canonical URL: https://codingcat.dev/course/svelte/lesson/css-basics # Learn Svelte: The Ultimate Guide - CSS Basics | Learn Svelte: The Ultimate Guide | CodingCat.dev Course [🧶 Learn Svelte: The Ultimate Guide](/course/svelte)Section 1.9 · Lesson 9 of 14[![](/logos/tags/svelte-symbol-light.svg)![](/logos/tags/svelte-symbol-dark.svg)Svelte](/topic/svelte)[![](/logos/tags/css-symbol-light.svg)![](/logos/tags/css-symbol-dark.svg)CSS](/topic/css)[← Prev Lesson](/course/svelte/lesson/conditionals-and-loops)[Next Lesson →](/course/svelte/lesson/how-to-call-an-api) # Learn Svelte: The Ultimate Guide - CSS Basics ![](https://cdn.sanity.io/media-libraries/mlttp0BZbCpV/images/d6057d0e030de250287d19cae1bef0e735fa188d-1920x1080.png?w=1920&h=1080&q=82&fit=max&auto=format)[@CodingCatDev62.5K / 100K Subscribers Goal](https://www.youtube.com/@codingcatdev?sub_confirmation=1)[Subscribe on YouTube→](https://www.youtube.com/@codingcatdev?sub_confirmation=1)[Watch on YouTube App ↗](https://www.youtube.com/watch?v=4TYAjtbyTb4&list=UUnKZ8gEb78zXKMi1ns-IQ2g)Lesson 9 / 14Course Lessons Outline▾1Svelte - [1.1Learn Svelte: The Ultimate Guide - What is Svelte?](/course/svelte/lesson/what-is-svelte) - [1.2Learn Svelte: The Ultimate Guide - Getting Started](/course/svelte/lesson/getting-started) - [1.3Learn Svelte: The Ultimate Guide - Starting to Code](/course/svelte/lesson/starting-to-code) - [1.4Learn Svelte: The Ultimate Guide - Components and Props](/course/svelte/lesson/components-and-props) - [1.5Learn Svelte: The Ultimate Guide - Inputs Bindings and Reactivity](/course/svelte/lesson/inputs-bindings-and-reactivity) - [1.6Learn Svelte: The Ultimate Guide - Basic Events](/course/svelte/lesson/basic-events) - [1.7Learn Svelte: The Ultimate Guide - Component Events and Forwarding](/course/svelte/lesson/component-events-forwarding) - [1.8Learn Svelte: The Ultimate Guide - Conditionals and Loops](/course/svelte/lesson/conditionals-and-loops) - [1.9Learn Svelte: The Ultimate Guide - CSS Basics](/course/svelte/lesson/css-basics) - [1.10Learn Svelte: The Ultimate Guide - How to call an API](/course/svelte/lesson/how-to-call-an-api) - [1.11Learn Svelte: The Ultimate Guide - Await Block](/course/svelte/lesson/await-block) - [1.12Learn Svelte: The Ultimate Guide - Transitions and Animations](/course/svelte/lesson/transitions-and-animations) - [1.13Learn Svelte: The Ultimate Guide - Component Lifecycle](/course/svelte/lesson/component-lifecycle) - [1.14Learn Svelte: The Ultimate Guide - Data Stores](/course/svelte/lesson/data-stores) ## Scoped CSS in Svelte Svelte is a modern JavaScript framework that is quickly gaining popularity among web developers. One of the things that makes Svelte so appealing is its use of scoped CSS. Scoped CSS allows you to style your components without affecting the rest of your application. This can be a huge advantage, especially when you are working on large projects with multiple developers. To use scoped CSS in Svelte, you simply add a style block to your component definition. The style block can contain any valid CSS code. Svelte will automatically scope the CSS to the component, so it will only affect the elements that are within the component's scope. For example, the following code defines a component with a style block: Copied! 🐾 ``` export default { name: 'MyComponent', style: ` h1 { color: red; } ` }; ``` This component will style all h1 elements within its scope to be red. Scoped CSS can be a powerful tool for managing the style of your Svelte applications. By using scoped CSS, you can avoid CSS conflicts and keep your code organized. Here are some additional benefits of using scoped CSS in Svelte: - **Reduced CSS bloat:** Scoped CSS means that your CSS is only included in the component that needs it. This can help to reduce the overall size of your CSS bundle, which can improve performance. - **Improved code organization:** Scoped CSS keeps your CSS code organized by component. This makes it easier to find and modify the CSS for a particular component. - **Enhanced developer productivity:** Scoped CSS can help developers to be more productive by making it easier to write and maintain CSS code ✏️ Visual Architecture Diagram ## how this course connects together. Follow AJ through the layered stack topology from input contract to production output. Let’s build it!✏️ Architecture Diagram: Learn Svelte: The Ultimate Guide: Learn Svelte: …LAYERED SYSTEM STACKARCHITECTURE DIAGRAM[Diagram Walkthrough]Content-driven layered-stack diagram for Learn Svelte: The Ultimate Guide: Learn Svelte: The Ultimate Guide - CSS Basics: Svelte -> Learn Svelte: The Ultimate Guide -> Learn Svelte.AAA Contrast Verified ## related deep dives. 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[![Alex Patterson](https://cdn.sanity.io/media-libraries/mlttp0BZbCpV/images/a606dfaa381aab08ddbe16a33fe1d3e1fb37c927-400x400.jpg?w=96&h=96&q=82&fit=max&auto=format)Alex Patterson](/author/alex-patterson)[![The Odin Project 5: Advanced HTML, CSS View Transitions & WCAG Accessibility](https://cdn.sanity.io/images/hfh83o0w/production/93736ccee5b8c088a202f319ce1223899a41f6bf-1376x768.png?w=1376&q=82&fit=max&auto=format)](/course/odin-advanced-html-css-and-a11y)November 4, 2026[![](/logos/tags/css-symbol-light.svg)![](/logos/tags/css-symbol-dark.svg)CSS](/topic/css)[#Accessibility](/topic/a11y)[![](/logos/tags/html-symbol-light.svg)![](/logos/tags/html-symbol-dark.svg)HTML](/topic/html)[+1](/course/odin-advanced-html-css-and-a11y) ### [The Odin Project 5: Advanced HTML, CSS View Transitions & WCAG Accessibility](/course/odin-advanced-html-css-and-a11y) Build 60fps GPU-accelerated animations, multi-page Astro View Transitions, WCAG AAA focus rings, and accessible native and Popover components. [![Alex Patterson](https://cdn.sanity.io/media-libraries/mlttp0BZbCpV/images/a606dfaa381aab08ddbe16a33fe1d3e1fb37c927-400x400.jpg?w=96&h=96&q=82&fit=max&auto=format)Alex Patterson](/author/alex-patterson)[Course Outline](/course/svelte) ## Learn Svelte: The Ultimate Guide 9/141 ### Svelte - [1.1Learn Svelte: The Ultimate Guide - What is Svelte?](/course/svelte/lesson/what-is-svelte) - [1.2Learn Svelte: The Ultimate Guide - Getting Started](/course/svelte/lesson/getting-started) - [1.3Learn Svelte: The Ultimate Guide - Starting to Code](/course/svelte/lesson/starting-to-code) - [1.4Learn Svelte: The Ultimate Guide - Components and Props](/course/svelte/lesson/components-and-props) - [1.5Learn Svelte: The Ultimate Guide - Inputs Bindings and Reactivity](/course/svelte/lesson/inputs-bindings-and-reactivity) - [1.6Learn Svelte: The Ultimate Guide - Basic Events](/course/svelte/lesson/basic-events) - [1.7Learn Svelte: The Ultimate Guide - Component Events and Forwarding](/course/svelte/lesson/component-events-forwarding) - [1.8Learn Svelte: The Ultimate Guide - Conditionals and Loops](/course/svelte/lesson/conditionals-and-loops) - [1.9Learn Svelte: The Ultimate Guide - CSS Basics▶](/course/svelte/lesson/css-basics) - [1.10Learn Svelte: The Ultimate Guide - How to call an API](/course/svelte/lesson/how-to-call-an-api) - [1.11Learn Svelte: The Ultimate Guide - Await Block](/course/svelte/lesson/await-block) - [1.12Learn Svelte: The Ultimate Guide - Transitions and Animations](/course/svelte/lesson/transitions-and-animations) - [1.13Learn Svelte: The Ultimate Guide - Component Lifecycle](/course/svelte/lesson/component-lifecycle) - [1.14Learn Svelte: The Ultimate Guide - Data Stores](/course/svelte/lesson/data-stores) @CodingCatDev on YouTube62.5K / 100K Subscribe for new course lessons and architecture deep dives every week. 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