CSS

Introduction to CSS
What is CSS
Understanding the Basics : Syntax, Selectors, and Declarations
Using Inline, Internal, and External Techniques to Integrate CSS into HTML
Complete working code of using CSS into HTML
The Box Model
Components of the CSS Box Model
Managing Layout with the CSS Box Model
Box Model Properties
Styling Text and Fonts
Color, alignment, decoration, and transformation of text
Font properties : Family, size, weight, and style.
Web-Safe Fonts and Custom Fonts Integration
Web-Safe Fonts
Custom Fonts Integration
Code Sample : Using Web-Safe and Custom Fonts
CSS Layout Technique
Static Positioning
Relative positioning
Absolute Positioning
Fixed Positioning
Sticky Positioning
Complete working code for positioning elements
Flexbox : Basics, alignment, and building a layout with Flexbox
Flexbox Basics
Alignment in Flexbox
Building a Layout with Flexbox
CSS Grid : Grid basics, creating layouts with grid-template columns, rows, and areas
Grid Basics
Creating Layouts with Grid Template Columns and Rows
Creating Layouts with Grid Areas
Display properties and Box manipulation
Display Properties
Box Manipulation
Code Sample : Display Properties and Box Manipulation
CSS Layout Technique : Positioning Elements
Transitions and Animations
CSS Transitions : Property, duration, timing function.
Code for Transition
CSS Animations : Keyframes and Animation Properties
Code for Animation
Advanced Styling with CSS
Pseudo-classes and Pseudo-elements
Styling Lists, Tables, and Forms
Creating and Styling Navigation Bars and Dropdown Menus
Visual Enhancements with CSS
Backgrounds: Colors, Images, and Gradients
Borders and Box Shadows for Depth and Emphasis
Using Transitions and Animations for Dynamic Effects
Responsive Web Design
Media Queries for Device-Specific Styling
Mobile-First versus Desktop-First Strategies
Responsive Images and Videos for Faster Page Loads
Transforms and Effects
2D and 3D Transforms : Rotate, Scale, Translate, and Skew
Visual Effects: Box-Shadow, Text-Shadow, Blend Modes
Advanced CSS Features
CSS Variables for Maintainable Style Sheets
Advanced Selectors and Combinator Usage
Advanced Layout Techniques in CSS
Multi-column Layouts, Flexbox, and Grid Advanced Techniques
Overlapping and Layering with z-index
SASS : Syntactically Awesome Style Sheets
Introduction to SASS/SCSS : Variables, Nesting, and Mixins
Organizing CSS with Partials and Imports
Advanced SASS : Functions, Loops, and Conditionals
Functions
Loops
Conitionals
Working with SVGs and Icons in Web Design
Implementing Scalable Vector Graphics and Icons in Web Design
Styling and Animating SVGs with CSS
CSS Best Practices and Optimization
Writing Efficient, Maintainable, and Scalable CSS
CSS Methodologies like BEM for Organizing CSS
Performance Optimization : Minification, Concatenation, and CSS Sprites
CSS Sample Project
Create a home page with HTML and CSS
HTML Structure
CSS Styling
Conclusion

CSS Variables for Maintainable Style Sheets

Beginner 5 Hours

More dynamic and maintainable stylesheets are made possible by advanced CSS capabilities like CSS variables and sophisticated selectors. These characteristics improve CSS's reusability and versatility, which facilitates the management of big projects and themes.

Custom properties, or CSS variables, let you save certain values that you can use again and again in your content. They are very helpful for responsive design, themes, and other CSS values you would want to change on the fly.

Code

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>CSS Variables Example</title>
<style>
:root {
--main-bg-color: coral;
--main-text-color: navy;
}
body {
background-color: var(--main-bg-color);
color: var(--main-text-color);
padding: 20px;
font-family: Arial, sans-serif;
}
.container {
border: 2px solid var(--main-text-color);
padding: 10px;
}
</style>
</head>
<body>
<div class="container">
This is a content container using CSS variables for styling.
</div>
</body>
</html>

It is standard procedure to define global CSS variables using the :root selector. Global definitions for --main-text-color and --main-bg-color are present here.

The colors are then set using these variables again in the body and.container styles, which makes maintainability easier by requiring changes to be done just once.