
What is a grid system?
A grid system is a set of columns and gutters that elements on a page align to.
Definition
Most web layouts use a 12-column grid on desktop that collapses to fewer columns on smaller screens, giving consistent alignment and rhythm.
Why it matters
Alignment makes a page feel ordered and intentional, even when the layout is unusual.
How to get it right
- Align elements to a shared set of columns.
- Use consistent gutters.
- Break the grid deliberately, for emphasis.
- Collapse columns sensibly on mobile.
Mistakes to avoid
- Elements that almost but do not quite align
- Inconsistent gutters
- Breaking the grid by accident
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The things people ask before they start building.
What is a grid system?
A grid system is a set of columns and gutters that elements on a page align to. Most web layouts use a 12-column grid on desktop that collapses to fewer columns on smaller screens, giving consistent alignment and rhythm.
Why does Grid system matter?
Alignment makes a page feel ordered and intentional, even when the layout is unusual.
How do you get grid system right?
Align elements to a shared set of columns. Use consistent gutters. Break the grid deliberately, for emphasis. Collapse columns sensibly on mobile.

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