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HTML Academy

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Build strong foundations in web development by learning HTML at HTML Academy.

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Course Overview

Master the Foundations of Web Development with CoddyKit's HTML & CSS Fundamentals

Are you ready to unlock the power behind every website you visit? Do you dream of building your own dynamic web pages, crafting engaging online experiences, or kickstarting a thriving career in web development? Look no further! HTML, or HyperText Markup Language, is the undisputed cornerstone of the World Wide Web. It's the essential language that browsers like Chrome, Safari, and Firefox use to structure and display content – from simple text to complex multimedia – on billions of web pages every single day. Understanding HTML is not just about learning code; it's about gaining the fundamental skill to create, organize, and present information effectively on the internet. Paired with CSS, the styling language that brings your HTML to life, you'll gain the complete toolkit to design and develop stunning, functional websites. CoddyKit brings this crucial knowledge directly to your fingertips, offering a comprehensive and accessible learning path designed for complete beginners and those looking to solidify their foundational web development skills.

Your Journey Through HTML & CSS Fundamentals:

Our meticulously designed curriculum guides you from the very basics of web page creation to mastering semantic structures and essential styling techniques. Each mini-course is crafted to build your knowledge incrementally, ensuring a solid understanding of every concept.

  • Introduction to HTML 5 (Level: A1)

    Browsers like Chrome, Safari, and Firefox access billions of websites daily, and HTMLβ€”the cornerstone of the World Wide Webβ€”enables the accurate presentation of written and visual data on these web pages. HTML, or HyperText Markup Language, uses various tags and keywords to structure and display complex information beyond plain text, much like punctuation enhances written communication. In this introductory course, we will begin by creating simple HTML pages, explore the most commonly used HTML tags, and learn to present complex data such as tables and lists. Additionally, we will delve into HTML page structures and meta tags, all based on the modern HTML5 standard, ultimately equipping you with the essential skills to build effective and dynamic web pages.

    • Introduction to HTML 5 β€” Introduction to HTML 5
  • HTML Basics (Level: A1)

    In the previous course, we gained a general overview of the HTML language and its significance. Now, we dive deeper into the core mechanics, learning the absolute basics of HTML syntax and structure. This module is crucial for understanding how to properly format and organize content for the web, laying a strong foundation for all your future web development projects.

    • HTML Basics β€” HTML Basics
  • Most used tags (Part 1) (Level: A1)

    Unlock the fundamentals of web development with our "Most Used HTML Tags" lesson, designed to equip you with the essential tools for creating structured and dynamic web pages. In this comprehensive module, you'll explore key HTML tags that form the backbone of every website, including headings (<h1> to <h6>), paragraphs (<p>), links (<a>), images (<img>), and more. Through practical examples and hands-on exercises, you'll learn how to effectively utilize these tags to enhance the functionality and aesthetics of your web projects. Whether you're a beginner aiming to build a solid foundation or looking to refresh your HTML skills, this lesson provides the knowledge and confidence needed to bring your web designs to life.

    • Most used tags (Part 1) β€” We will learn the most used tags in HTML language.
  • Most used tags (Part 2) (Level: A1)

    Building on the knowledge from Part 1, this course continues your exploration of the most commonly used HTML tags, focusing on elements that help you present more complex and interactive content. You'll deepen your understanding of how to structure information accurately for browsers. We will progress to displaying more intricate data structures such as tables and lists, and further explore HTML page structures and essential meta tags. By the end of this course, you will have a robust understanding of how to use a wider array of HTML5 tags to build effective and dynamic web pages.

    • Most used tags (Part 2) β€” We will learn the most used tags in HTML language.
  • HTML Tables (Level: A1)

    Enhance your web development skills with our "HTML Tables" lesson, where you'll learn to create and structure effective tables for your web pages. This comprehensive module covers the essential HTML tags such as <table>, <tr> (table row), <td> (table data), and <th> (table header), guiding you through organizing data into rows and columns seamlessly. You'll engage in practical exercises to format and style tables, ensuring they are both visually appealing and easy to read. Additionally, the lesson emphasizes best practices for making tables accessible and responsive, allowing your data to display correctly on all devices. Whether you're presenting simple information or complex datasets, this lesson provides the tools and techniques needed to display data clearly and professionally using HTML tables.

    • HTML Tables β€” HTML Tables
  • HTML Forms and Inputs (Level: A1)

    Web pages have evolved from static displays to interactive applications where users don't just consume information but also contribute. In today's dynamic web, users often need to send data to a serverβ€”whether it's logging in, submitting feedback, or making a purchase. One of the primary methods we use to gather this data from the user is through HTML forms. This course will teach you how to create robust forms, utilize various input types (text fields, checkboxes, radio buttons, etc.), and ensure your web pages can effectively capture user input, making your sites truly interactive.

    • HTML Forms β€” HTML Forms
  • HTML Structure (Level: A1)

    Enhance your HTML expertise with our comprehensive "HTML Structure Concepts" course module, which explores the most essential and widely used HTML tags for building well-organized and semantically rich web pages. This module covers fundamental elements such as <div>, <header>, <footer>, <main>, <aside>, <section>, <article>, <figure>, and <nav>, providing in-depth explanations and practical applications for each. You'll learn how to effectively structure content, differentiate between inline and block elements, and implement best practices for semantic markup to improve accessibility and SEO. Through hands-on exercises and real-world examples, you'll gain the skills to create dynamic displays, organize complex data, and design responsive layouts. By the end of this module, you'll have a solid understanding of HTML's structural components, empowering you to build robust, maintainable, and visually appealing websites with confidence.

    • HTML Structure β€” HTML Structure
  • HTML Lists (Level: A1)

    Master the art of organizing content with our "HTML Lists" lesson. This concise module introduces you to the different types of lists in HTML, including ordered lists (<ol>), unordered lists (<ul>), and definition lists (<dl>). You'll learn how to structure information clearly and effectively, enhancing the readability and functionality of your web pages. Through practical examples and hands-on exercises, you'll gain the skills to create nested lists, style them with CSS, and implement best practices for accessible web design. Whether you're a beginner or looking to refine your HTML skills, this lesson provides the essential knowledge to effectively use lists in your web development projects.

    • HTML Lists β€” HTML Lists

Transitioning to Styling: Essential CSS for Your HTML

Once you've mastered HTML, it's time to make your web pages beautiful and engaging. This next section introduces you to CSS, the powerful language for styling your HTML content.

  • Getting started with CSS (Level: A1)

    Start your web design journey with our "Introduction to CSS" course, where you'll learn the essential concepts and techniques to enhance the visual appearance of your web pages. This course covers the basics of inline styling, CSS selectors, and style definitions, as well as advanced topics like nesting selectors and inheritance. Through practical examples and hands-on exercises, you'll develop the skills to write clean, maintainable CSS code and effectively style your HTML elements. By the end of the course, you'll be equipped to create visually appealing and professional websites. Join us and take the first step toward mastering CSS!

    • What is CSS? β€” What is CSS?
  • Introduction to CSS (Level: A1)

    In the previous course, we learned what CSS is and why we should use it to style our HTML. Now, we'll solidify that understanding with a quick, practical introduction and a simple example. This module will show you CSS in action, making the connection between your HTML structure and its visual presentation clear and immediate.

    • Introduction to CSS β€” Introduction to CSS
  • How Can We Define Styles? (Level: A1)

    In the "How Can We Define Styles?" lesson, you'll learn the three main ways to apply CSS to your web pages: using inline styles directly within HTML tags, the <style> tag for internal stylesheets within the document, and external CSS files for site-wide styling. This module offers clear examples and practical guidance on each method, helping you enhance your website's appearance and maintain a well-organized codebase. By understanding when and how to use each styling approach, you'll be able to create visually appealing and easily maintainable web designs.

    • How Can We Define Styles? β€” How Can We Define Styles?
  • Class Selectors (Level: A1)

    Master CSS Class Selectors in our concise course module, where you'll learn how to apply consistent styles to multiple HTML elements efficiently. This lesson covers defining class selectors (.my-class), using them in your HTML, and best practices for maintaining clean and reusable code. Through practical examples and hands-on exercises, you'll gain the skills to enhance your web designs with flexible and scalable styling techniques. Ideal for both beginners and those looking to strengthen their CSS toolkit, this module will empower you to create visually appealing and maintainable websites.

    • Class Selector β€” Class Selector
  • Selector Types (Level: A1)

    Master the essential CSS selectors in our "Selector Types" course module. This lesson covers both basic selectors (like element and ID selectors) and advanced selectors, including combination selectors (e.g., descendant and adjacent sibling selectors), child selectors (>), and powerful pseudo-classes like :first-child. Through clear examples and hands-on exercises, you'll learn how to precisely target and style HTML elements to create dynamic and responsive web designs. By the end of this course, you'll be equipped with the skills to build efficient and maintainable CSS stylesheets, enhancing the overall quality of your web development projects.

    • Selector Types β€” Selector Types
  • Most used CSS properties (Level: A1)

    Enhance your web design skills with our "Most Used CSS Properties" course, where you'll explore essential CSS properties that control layout and typography. This comprehensive module covers key topics such as width, height, max-width, understanding the CSS box model with content-box vs border-box, and critical text styling properties like text-decoration, text-indent, text-align, font-family, and font-style. Through clear explanations and practical examples, you'll learn how to adjust element dimensions, style text effectively, and create responsive, visually appealing web pages. Whether you're a beginner or looking to refine your CSS expertise, this course provides the tools and techniques needed to build professional and well-designed websites with confidence.

    • Most used CSS properties β€” Most used CSS properties
  • CSS Margin (Level: A1)

    Master the art of spacing with our "CSS Margin" course module. Margins are crucial for controlling the space around elements, ensuring your web designs are well-organized and visually appealing. In this lesson, you'll learn how to apply and customize margins using properties like margin-top, margin-right, margin-bottom, and margin-left, as well as shorthand techniques for efficient styling. Through practical examples and hands-on exercises, you'll discover how to create balanced layouts, prevent common spacing issues, and enhance the overall user experience. Whether you're a beginner or looking to refine your CSS skills, this course will equip you with the knowledge to effectively manage element spacing and create professional, polished websites.

    • Margin β€” Margin
  • CSS Padding (Level: A1)

    Welcome to the CSS Padding course. Padding is used to create space within the boundaries of your HTML element, separating its content from its border. Just like with margins, we can add 4-way padding to the element (padding-top, padding-right, padding-bottom, padding-left) and use shorthand properties for efficiency. Let's learn the details of how padding enhances visual hierarchy and readability on your web pages.

    • Padding β€” Padding
  • Color and Background (Level: A1)

    Boost your web design skills with our concise "Color and Background" CSS course. Learn essential properties like background-color, opacity, and how to work with background images, including positioning, repeating, and attachment. Through practical examples and hands-on exercises, you'll master the techniques to create visually appealing and responsive websites. By the end of this course, you'll be able to effectively use colors and backgrounds to enhance the look and feel of your web pages, making them more attractive and user-friendly.

    • Color ve Background β€” Color ve Background

What You'll Learn in This Comprehensive HTML & CSS Course:

By completing CoddyKit's HTML & CSS Fundamentals curriculum, you will gain a robust understanding of:

  • HTML5 Fundamentals: Master the core syntax, elements, and structure of modern HTML to build the skeleton of any web page.
  • Essential HTML Tags: Learn to use headings, paragraphs, links, images, lists, and semantic structural elements like <header>, <footer>, <section>, and <article>.
  • Organizing Complex Data: Effectively display information using HTML tables for structured data and various list types for organized content.
  • Interactive Web Forms: Create user-friendly forms to collect data, making your websites dynamic and engaging.
  • Semantic HTML for SEO & Accessibility: Understand how to use HTML tags correctly to improve search engine optimization and make your content accessible to all users.
  • Introduction to CSS: Grasp the basics of Cascading Style Sheets to control the visual presentation of your HTML.
  • CSS Styling Methods: Learn the three ways to apply CSS (inline, internal, external) and when to use each for maintainable code.
  • Mastering CSS Selectors: Precisely target HTML elements using basic, class, ID, and advanced selectors like child and pseudo-classes.
  • Fundamental CSS Properties: Style text with font properties, control element dimensions, and understand the crucial CSS Box Model (margin, padding, border).
  • Color & Background Design: Enhance the aesthetic appeal of your web pages using CSS colors, background images, and related properties.
  • Building Dynamic Web Pages: Combine HTML and CSS to create well-structured, visually appealing, and functional websites from scratch.

Who Is This Course For?

This comprehensive HTML & CSS curriculum is perfect for:

  • Absolute Beginners: No prior coding experience? No problem! This course starts from the very first principles of web development.
  • Aspiring Web Developers: Lay a rock-solid foundation for a career in front-end development, full-stack development, or web design.
  • Graphic Designers: Learn how to translate your visual designs into functional web pages and understand the underlying structure.
  • Content Creators & Bloggers: Gain control over your website's structure and appearance, moving beyond template limitations.
  • Digital Marketers: Understand how web pages are built to better optimize content for SEO and user experience.
  • Anyone Curious About How Websites Work: Demystify the internet and gain practical skills to build your own online presence.

Embark on your journey to becoming a proficient web developer today! With CoddyKit's expert-led mini-courses, you'll gain practical, hands-on experience and build a strong portfolio of fundamental web development skills. Don't just browse the web – build it! Enroll now and start creating your first web pages with confidence and creativity.

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How You'll Learn

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Interactive Lessons
Hands-on coding exercises with real-time feedback
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Get instant help from our AI when you're stuck
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Built-in Editor
Write and run code directly in your browser
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Certificate
Earn a certificate when you complete the course
Curriculum

40 Courses

Every course in the HTML Academy learning path.

01

HTML Document Structure

A14 lessons

Learn how browsers parse HTML, what DOCTYPE does, and how the html, head, and body elements organize every web page.

  • What Is HTML and How Browsers Parse It
  • The DOCTYPE Declaration
  • The html head and body Elements
  • +1 more
02

Text Content Elements

A14 lessonsPRO

Master headings, paragraphs, emphasis, inline elements, and whitespace control with HTML text tags.

  • Headings h1-h6 and Their Hierarchy
  • Paragraphs em strong and b i
  • br hr blockquote and pre
  • +1 more
03

Links and Navigation

A14 lessonsPRO

Build navigation with anchor elements, absolute and relative URLs, new-tab links, and fragment identifiers.

  • The anchor Element and href Attribute
  • Absolute vs Relative URLs
  • Opening Links in New Tabs and Download Attribute
  • +1 more
04

Images and Figures

A14 lessonsPRO

Display images responsively with img, srcset, the picture element, and semantic figure captions.

  • The img Element src alt width height
  • Responsive Images with srcset and sizes
  • The picture Element for Art Direction
  • +1 more
05

Lists

A14 lessonsPRO

Create unordered, ordered, and description lists with proper nesting and semantic meaning.

  • Unordered Lists ul and li
  • Ordered Lists ol start reversed type
  • Description Lists dl dt dd
  • +1 more
06

Tables

A24 lessonsPRO

Build accessible data tables with proper structure, spanning cells, and table sections.

  • table tr td and th
  • thead tbody tfoot Structure
  • colspan and rowspan for Spanning
  • +1 more
07

HTML Attributes and Global Attributes

A24 lessonsPRO

Understand id, class, style, hidden, tabindex, and custom data-* attributes used across all HTML elements.

  • id class style and title
  • The hidden Attribute
  • tabindex and accesskey
  • +1 more
08

HTML Forms Basics

A24 lessonsPRO

Build accessible web forms with input types, labels, buttons, and the form element's action and method attributes.

  • The form Element action method enctype
  • Input Types text password email number tel
  • The label Element and Accessibility
  • +1 more
09

Advanced Form Controls

A24 lessonsPRO

Enhance forms with dropdowns, textareas, checkbox groups, radio buttons, and autocomplete with datalist.

  • Select and option Dropdown Menus
  • Textarea for Multi-line Input
  • Checkbox and Radio Button Groups
  • +1 more
10

Form Validation Attributes

A24 lessonsPRO

Use HTML5 validation attributes like required, pattern, min, and max to validate user input before submission.

  • required pattern min max and maxlength
  • The novalidate Attribute
  • Constraint Validation API Basics
  • +1 more
11

Semantic HTML5

A24 lessonsPRO

Replace generic divs with meaningful HTML5 elements like header, nav, main, footer, article, and section.

  • header nav main and footer
  • The article Element Self-Contained Content
  • The section Element vs div
  • +1 more
12

More Semantic Elements

A24 lessonsPRO

Explore aside, details, summary, progress, and meter to add richer meaning and interactivity to pages.

  • aside Complementary Content
  • figure and figcaption Revisited
  • details and summary Disclosure Widget
  • +1 more
13

HTML Head and Metadata

A24 lessonsPRO

Master the head section: title, meta tags, viewport, canonical URLs, robots directives, and favicons.

  • title and its Role in SEO
  • meta charset viewport author and description
  • Canonical URLs and robots meta
  • +1 more
14

Audio and Video Elements

A24 lessonsPRO

Embed audio and video natively with HTML5, provide multiple formats, and add subtitles with track and WebVTT.

  • The audio Element src controls loop autoplay
  • The video Element and Aspect Ratio
  • The source Element for Multiple Formats
  • +1 more
15

HTML Accessibility Basics

B14 lessonsPRO

Understand WCAG levels, heading hierarchy, alt text strategy, and keyboard navigation for inclusive web pages.

  • Why Accessibility Matters WCAG Levels
  • Heading Hierarchy for Screen Readers
  • Image Alt Text When and How
  • +1 more
16

ARIA Roles and Attributes

B14 lessonsPRO

Enhance accessibility with ARIA roles, labels, descriptions, and the rule of using native HTML first.

  • When to Use ARIA vs Native HTML
  • role button alert dialog and landmark
  • aria-label aria-labelledby and aria-describedby
  • +1 more
17

Custom Data Attributes

B14 lessonsPRO

Store and access custom metadata on HTML elements using data-* attributes, the dataset API, and CSS selectors.

  • data-* Syntax and Naming Conventions
  • Accessing data-* with dataset in JavaScript
  • Using data-* with CSS attribute selectors
  • +1 more
18

HTML Templates

B14 lessonsPRO

Use the template element to define inert markup, clone it efficiently, and compare it to innerHTML-based rendering.

  • The template Element Inert Content
  • Cloning Templates with cloneNode
  • Using template with JavaScript Rendering
  • +1 more
19

Canvas Element

B14 lessonsPRO

Draw shapes, text, and images on a 2D canvas and animate them with requestAnimationFrame.

  • Setting Up the Canvas and 2D Context
  • Drawing Rectangles and Paths
  • Text and Images on Canvas
  • +1 more
20

SVG in HTML

B14 lessonsPRO

Embed scalable vector graphics inline, use basic shapes, control the viewBox, and animate SVG with CSS.

  • Inline SVG vs img and object
  • Basic SVG Shapes rect circle path
  • SVG viewBox and Responsive Scaling
  • +1 more
21

iframe and Embedded Content

B14 lessonsPRO

Embed external content with iframe, understand sandboxing for security, and use lazy loading for performance.

  • The iframe Element src and sandbox
  • iframe Security Clickjacking and X-Frame-Options
  • The embed and object Elements
  • +1 more
22

HTML Web Storage

B14 lessonsPRO

Store client-side data with localStorage and sessionStorage, listen for storage events, and follow security guidelines.

  • localStorage vs sessionStorage
  • Getting Setting and Removing Items
  • Listening for Storage Events
  • +1 more
23

Drag and Drop API

B14 lessonsPRO

Implement drag-and-drop interactions with the HTML5 Drag and Drop API and the dataTransfer object.

  • draggable Attribute and dragstart Event
  • dragover and drop Events
  • dataTransfer Object
  • +1 more
24

SEO and Social Meta

B14 lessonsPRO

Optimize pages for search engines and social sharing with OpenGraph, Twitter Cards, JSON-LD, and hreflang.

  • OpenGraph og:title og:description og:image
  • Twitter Card Meta Tags
  • JSON-LD Structured Data Basics
  • +1 more
25

HTML Email Templates

B14 lessonsPRO

Build email-safe HTML using table-based layouts, inline styles, and cross-client image techniques.

  • The Table-Based Layout Approach
  • Inline Styles for Email
  • Image Handling in Email Clients
  • +1 more
26

Advanced ARIA Patterns

B24 lessonsPRO

Implement toggle patterns, tab interfaces, live regions, and test with real screen readers.

  • aria-expanded aria-controls for Toggles
  • aria-selected and Tab Patterns
  • Live Regions aria-live aria-atomic aria-relevant
  • +1 more
27

HTML Performance

B24 lessonsPRO

Speed up page loads with async and defer scripts, preload hints, lazy-loaded images, and resource hints.

  • The async and defer Attributes
  • Preload Prefetch and Preconnect
  • Lazy Loading Images loading=lazy
  • +1 more
28

Web Components Custom Elements

B24 lessonsPRO

Define reusable custom HTML elements with the Custom Elements API, lifecycle callbacks, and observed attributes.

  • Defining Elements with customElements.define
  • The connectedCallback and disconnectedCallback
  • Observed Attributes and attributeChangedCallback
  • +1 more
29

Shadow DOM

B24 lessonsPRO

Encapsulate markup and styles inside Shadow DOM, distribute content with slots, and expose styling APIs with part.

  • attachShadow and Shadow Root
  • Slot Elements for Content Distribution
  • Scoped Styles Inside Shadow DOM
  • +1 more
30

HTML Modules and Import Maps

B24 lessonsPRO

Use ES module scripts, import maps for bare specifiers, dynamic imports, and module federation concepts.

  • ES Module Scripts type=module
  • Import Maps importmap
  • Dynamic Import() in Modules
  • +1 more
31

Progressive Enhancement

B24 lessonsPRO

Build with progressive enhancement: start with solid HTML, layer CSS and JavaScript, and detect features correctly.

  • The PE Philosophy Start with HTML
  • Feature Detection vs Browser Sniffing
  • Graceful Degradation vs Progressive Enhancement
  • +1 more
32

Internationalization

B24 lessonsPRO

Prepare HTML for global audiences with lang, dir, bdi, bdo, charset, and right-to-left text support.

  • The lang Attribute and Screen Readers
  • dir=rtl for Right-to-Left Text
  • The bdi and bdo Elements
  • +1 more
33

HTML Security

B24 lessonsPRO

Protect pages from XSS, clickjacking, and injection with CSP, sandboxing, SRI, and safe HTML handling practices.

  • Content Security Policy meta http-equiv
  • XSS via innerHTML and How to Prevent It
  • iframe Sandboxing and Permissions Policy
  • +1 more
34

HTML Forms Advanced API

B24 lessonsPRO

Leverage FormData, the Constraint Validation API, custom validity messages, and form state management.

  • The FormData API
  • The Constraint Validation API
  • reportValidity and setCustomValidity
  • +1 more
35

HTML History and Navigation API

B24 lessonsPRO

Manage browser history with pushState, popstate events, and the modern Navigation API for SPA routing.

  • pushState and replaceState
  • The popstate Event
  • Hash-Based vs Path-Based Routing
  • +1 more
36

Intersection Observer

B24 lessonsPRO

Use IntersectionObserver to implement lazy loading, infinite scroll, and scroll-linked animation triggers.

  • IntersectionObserver API and Thresholds
  • Lazy Loading with IntersectionObserver
  • Infinite Scroll Implementation
  • +1 more
37

HTML for PWAs

B24 lessonsPRO

Configure progressive web apps with the web app manifest, service worker registration, and offline fallback pages.

  • The Web App Manifest
  • Service Worker Registration from HTML
  • Theme Color and App Icons
  • +1 more
38

HTML Validation and Testing

B24 lessonsPRO

Validate markup with the W3C Validator, audit HTML with Lighthouse, and test accessibility with pa11y and axe.

  • The W3C Markup Validator
  • Lighthouse HTML Audit
  • Pa11y and axe for Accessibility Testing
  • +1 more
39

The Future of HTML

B24 lessonsPRO

Preview emerging HTML features: Declarative Shadow DOM, the Popover API, selectlist, and command attributes.

  • Declarative Shadow DOM
  • The Popover API
  • The selectlist Element
  • +1 more
40

HTML at Scale

C14 lessonsPRO

Manage HTML in large projects with component extraction, server-side templating, design systems, and styleguide docs.

  • Component Extraction and Partials
  • Server-Side Templating Jinja2 Handlebars
  • HTML in Design Systems
  • +1 more

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