Flex vs Grid

1. Dimension

Flex is meant to layout the items in 1 direction/dimension - either x or y

Grid allows to layout items in 2 dimensions

2. width of items

In Flex, the widths of flex items (inside the container element) varies(flexes) based on the contents within each item. Although the fixed width of each item can be achieved using css width properties.

In Grid, you have to mention the exact grid of the item. So each item in the CSS Grid has fixed width.

2. spacing between items

In flex, by default there is no spacing between items, items are stacked attached to one another. This can be customized using uss props like margin, padding, (or in tailwind using space-x-n or space-y-n ).

In grid, you can specify the space between items.