Can you explain what a CSS grid layout is?

A CSS grid layout is a powerful layout system that allows developers to create two-dimensional grid-based layouts. It works with both rows and columns, enabling precise control over placement and alignment of elements on a web page. This system lets designers easily create complex layouts without needing to rely on floats or positioning, which can be cumbersome.

Using CSS Grid, you can define a grid container and specify how child elements (grid items) will behave within that grid. This includes controlling the size, position, and alignment of items, as well as creating responsive designs that adapt seamlessly to different screen sizes.

The focus on two dimensions distinguishes the grid layout from other layout techniques. Unlike a linear layout, which organizes elements in a single direction (either horizontally or vertically), the grid system introduces the ability to structure content within a two-dimensional space, providing greater flexibility and creativity in design. This makes it an essential tool for modern web development.