Responsive design means building websites that look good on all screen sizes.
A responsive website automatically adjusts its layout for mobile phones, tablets, laptops, and desktops.
Today, most users visit websites from mobile devices, so responsive design is a must for every developer.
This simple example shows a flexible container that always fits the screen width.
Using percentages and flexible units is the first step toward responsive design.
Here, Flexbox is used to make columns wrap automatically on smaller screens.
This is one of the simplest responsive layout techniques.
This is how modern websites create responsive sections using CSS Grid.
The number of columns changes automatically based on available space.
Key ideas of responsive design
- Layout adapts to screen size
- Content remains readable on all devices
- No horizontal scrolling
- Better user experience
Responsive design is not only about layout.
Text size, images, and spacing should also adapt to different screen sizes.
Practice task
Create a simple page and:
- Use percentage widths
- Use Flexbox or Grid
- Resize the browser window
- Observe how the layout changes
Next lesson
In the next page, you will learn about the viewport and mobile friendly layouts.