CSS Grid Layout: Complete Tutorial with Examples

CSS Grid is the most powerful layout system available in CSS. Unlike Flexbox, which is one-dimensional, Grid handles both rows and columns simultaneously, making it ideal for complex page layouts. Once you understand Grid's mental model, you'll find yourself reaching for it constantly — and wondering how you ever designed without it. The Grid Mental Model A CSS Grid layout consists of: A grid container — the parent with display: grid Grid items — direct children of the container Grid tracks — the rows and columns that define the grid structure Grid lines — the dividing lines between tracks (numbered from 1) Grid cells — the intersection of a row and column Grid areas — named rectangular regions spanning one or more cells Defining a Grid grid-template-columns and grid-template-rows These properties define the track sizes. Values can be lengths, percentages, fr units (fractions of available space), or the auto keyword. .container { display: grid; /* Three equal columns */ grid-template-c