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CSS Variables and Custom Properties

Transform your CSS with variables—dynamic, scalable, future-ready styling!

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Intermediate

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CSS Variables and Custom Properties

4 Modules

Course Curriculum

4 Modules · 6 Chapters · 18 Topics · 131 Sub-topics

Introduction to CSS

2 Topics

Getting Started with CSS

6 Sub-topics

What is CSS and Why It Matters

Brief History of CSS Evolution

How CSS Works with HTML

Understanding the Browser Rendering Process

CSS Syntax Structure Explained

Writing Your First CSS Rule

CSS Implementation Methods

9 Sub-topics

Inline CSS – Adding Styles Directly

Internal CSS – Using Style Tags

External CSS – Linking Stylesheets

Comparing CSS Methods – When to Use Which

Setting Up Your CSS Development Environment

Browser Developer Tools for CSS

CSS File Organization Basics

Understanding CSS Comments

CSS Validation and Error Checking

CSS Colors

3 Topics

Color Formats and Models

10 Sub-topics

Understanding Color Theory for Web

Named Colors in CSS

Hexadecimal Color Values

Shorthand Hex Colors

RGB Color Model Explained

Using rgb() Function

RGBA for Transparency

HSL Color Model Introduction

Using hsl() Function

HSLA for Transparency

Modern Color Functions

9 Sub-topics

HWB Color Model

LAB Color Space

LCH Color Space

OKLCH Color Function

color() Function for Wide Gamut

color-mix() Function

currentColor Keyword

transparent Keyword

inherit, initial, and unset for Colors

Color Accessibility

4 Sub-topics

System Colors and Accessibility

Color Contrast and WCAG Guidelines

Creating Color Palettes

Color Tools and Resources

CSS Custom Properties (Variables)

3 Topics

Variable Basics

9 Sub-topics

Introduction to CSS Variables

Declaring Custom Properties

Using var() Function

Variable Naming Conventions

Scope and Inheritance

Global Variables with :root

Local/Scoped Variables

Fallback Values

Variables with Invalid Values

Variables in Practice

5 Sub-topics

Variables in calc()

Variables in Media Queries

Responsive Variables

Dark Mode with Variables

Theming with Custom Properties

Advanced Variables

7 Sub-topics

Animating Custom Properties

@property Rule

Type-Safe Custom Properties

Variables with JavaScript

Dynamic Theme Switching

Design Token Architecture

CSS Variables Best Practices

CSS Media Queries and Responsive Design

4 Topics

Responsive Design Principles

5 Sub-topics

Responsive Design Principles

Mobile-First vs Desktop-First

Viewport Meta Tag

Media Query Syntax

Media Types (screen, print, all)

Width and Height Queries

7 Sub-topics

Width Media Features

min-width Queries

max-width Queries

Combining min and max Width

Height Media Features

Aspect Ratio Queries

Orientation Queries

Device and User Preference Queries

7 Sub-topics

Resolution Queries

Device Pixel Ratio

Hover and Pointer Queries

prefers-color-scheme Query

prefers-reduced-motion Query

prefers-contrast Query

prefers-reduced-transparency

Media Query Best Practices

6 Sub-topics

Range Syntax in Media Queries

Logical Operators (and, or, not)

Media Query Breakpoints

Common Breakpoint Strategies

Content-Based Breakpoints

@media vs @container

CSS Functions

3 Topics

Math Functions

9 Sub-topics

CSS Functions Overview

calc() Deep Dive

min() Function

max() Function

clamp() Function

round() Function

mod() and rem() Functions

abs() Function

sign() Function

Trigonometric Functions

6 Sub-topics

pow() and sqrt() Functions

log() and exp() Functions

sin(), cos(), tan() Functions

asin(), acos(), atan() Functions

atan2() Function

hypot() Function

Other CSS Functions

11 Sub-topics

attr() Function

env() Function

Safe Area Insets

url() Function

image-set() Function

image() Function

cross-fade() Function

element() Function

counter() and counters()

symbols() Function

toggle() Function

CSS Architecture and Best Practices

3 Topics

CSS Methodologies

11 Sub-topics

CSS Architecture Overview

Specificity Management

BEM Methodology Introduction

BEM Naming Convention

BEM Block Element Modifier

OOCSS Principles

SMACSS Overview

ITCSS Architecture

Atomic CSS Concept

Utility-First CSS

Component-Based CSS

Code Organization

3 Sub-topics

CSS File Organization

CSS Code Splitting

Critical CSS

Performance and Quality

7 Sub-topics

CSS Performance Optimization

Reducing Repaints and Reflows

CSS Minification

CSS Code Quality

CSS Linting with Stylelint

CSS Documentation

CSS Design Systems

0.0

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CSS Variables and Custom Properties

Certificate of Completion

Course Curriculum

Student Reviews

Frequently Asked Questions

Start Your Journey Today

CSS Variables and Custom Properties

Certificate of Completion

Course Curriculum

Student Reviews

Frequently Asked Questions

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