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Responsive Design Fundamentals

Master responsive layouts with media queries, flexible grids, and adaptive breakpoints.

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Responsive Design Example
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Responsive Layout Demo

Toggle Screen Size
Sidebar
Content

CSS Media Queries

Breakpoint Syntax


@media (max-width: 768px) {
  .sidebar {
    display: none;
  }
}

Hides sidebar when screen width is less than 768px

Grid Layout


.container {
  display: grid;
  grid-template-columns: 2fr 7fr 1fr;
}

Flexible 3-column layout with relative sizing

Design Considerations

Mobile First

Start with small screens and progressively enhance

Fluid Sizing

Use percentage and viewports units for flexibility

Adaptive Layouts

Design for different device densities and orientations