Question 1

What is CSS Grid?

Accepted Answer

CSS Grid is a two-dimensional layout system that allows you to create complex layouts using rows and columns. Unlike Flexbox which is one-dimensional, Grid handles both horizontal and vertical layouts simultaneously, making it ideal for page-level layouts.

Question 2

What is the difference between CSS Grid and Flexbox?

Accepted Answer

CSS Grid is two-dimensional (rows AND columns) while Flexbox is one-dimensional (row OR column). Use Grid for page layouts and complex 2D arrangements. Use Flexbox for component-level layouts, navigation bars, and one-directional content flow.

Question 3

What does "fr" unit mean in CSS Grid?

Accepted Answer

The "fr" unit represents a fraction of the available space in the grid container. For example, "1fr 2fr" creates two columns where the second is twice as wide as the first. It is similar to flex-grow in Flexbox.

Question 4

Is CSS Grid supported in all browsers?

Accepted Answer

Yes, CSS Grid is supported in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. It has been widely supported since 2017 with over 97% global browser support.

Question 5

Can I use CSS Grid and Flexbox together?

Accepted Answer

Absolutely. A common pattern is to use CSS Grid for the overall page layout and Flexbox for individual components within grid cells. They complement each other perfectly.

Property	Description	Example
grid-template-columns	Defines column track sizes	1fr 1fr 1fr
grid-template-rows	Defines row track sizes	auto 1fr auto
gap	Sets row and column gaps	16px 16px
justify-items	Aligns items horizontally in cells	start \| center \| end \| stretch
align-items	Aligns items vertically in cells	start \| center \| end \| stretch

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