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Modern Styling

CSS3 Styling & Layout Architecture Manual

Flexbox, CSS Grid, Custom Design Variables, Responsive Breakpoints & Micro-Interactions.

🎨 CSS3 Course Table of Contents
1. Flexbox Alignment Architecture 2. Responsive CSS Grid Layouts 3. CSS Custom Variables & Tokens 4. Glassmorphism & UI Shadows 5. Student CSS Styling Exercises

1. Flexbox Alignment Architecture

CSS Flexbox Blueprint 
/* Responsive Flexbox Container */
.flex-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

2. Responsive CSS Grid Layouts

CSS Grid Blueprint 
/* Auto-Fit Responsive Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}
📝 CSS3 Student Design Assignments
  1. Build a responsive navbar using CSS Flexbox that transforms into a mobile hamburger menu under 992px.
  2. Create a card grid layout using CSS Grid with glassmorphism backdrop filters and hover elevation.