20 CSS Grid Interview Questions and Answers

CSS Grid is a powerful tool for web developers who want to create responsive, dynamic layouts. If you’re interviewing for a position that involves CSS Grid, it’s important to be prepared to answer questions about your experience and understanding of the tool. In this article, we’ll review some of the most common CSS Grid interview questions and provide tips on how to answer them.

CSS Grid Interview Questions and Answers

Here are 20 commonly asked CSS Grid interview questions and answers to prepare you for your interview:

1. What is a CSS Grid?

A CSS Grid is a layout system for creating two-dimensional grid-based layouts. It is a powerful tool for creating responsive layouts, and can be used to create a wide variety of different types of layouts.

2. Why would you use CSS Grid instead of Flexbox?

CSS Grid is a newer layout system that offers a more powerful and flexible grid-based layout system than Flexbox. While Flexbox is better suited for one-dimensional layouts, CSS Grid is designed for two-dimensional layouts, making it a better choice for more complex web designs.

3. What are the advantages and disadvantages of using CSS Grid?

The advantages of using CSS Grid include the ability to create complex layouts without having to use floats or positioning, and the ability to control the size and position of elements on the page more precisely. The disadvantages of CSS Grid include the fact that it is not yet fully supported by all browsers, and that it can be more difficult to learn than other CSS layout methods.

4. Can you explain what a grid container is in context with CSS Grid?

A grid container is an element that contains a grid. It is the direct parent of all grid items.

5. How do you declare a grid on an element?

You can declare a grid on an element by setting the display property to grid.

6. How can you define rows and columns for your grid?

You can define rows and columns for your grid by using the CSS properties ‘grid-template-columns’ and ‘grid-template-rows’.

7. Can you give me some examples of how to set up row and column sizing properties?

There are a few different ways to set up row and column sizing properties in CSS Grid. One way is to use the ‘fr’ unit, which stands for ‘fraction’. The ‘fr’ unit allows you to specify how much of the available space a particular row or column should take up, relative to the other rows and columns. Another way to set up row and column sizing is to use percentages. You can specify that a particular row or column should take up a certain percentage of the available space. Finally, you can also use the ‘auto’ keyword, which will cause the row or column to take up only as much space as is necessary for the content inside of it.

8. How can you name areas in your grid layout?

You can name areas in your grid layout using the grid-template-areas property. This property takes a series of strings, which represent the names of the areas in your grid.

9. Is it possible to nest grids within other grids? If yes, then how?

Yes, it is possible to nest grids within other grids. This can be accomplished by using the CSS Grid properties of grid-template-columns and grid-template-rows. By specifying the number of columns and rows for each grid, you can control the overall layout of the nested grids.

10. What’s the difference between implicit and explicit track sizing in CSS Grid?

With implicit track sizing, the tracks (rows or columns) are sized based on the content inside of them. With explicit track sizing, the tracks are sized based on either a set pixel value or a percentage of the total grid.

11. How can you control the order of elements in the grid?

You can use the order property to control the order of elements in the grid. The order property can be set to a number, which will determine the element’s position in the grid, or it can be set to “inherit”, which will cause the element to inherit its position from its parent element.

12. When would you use auto-placement when working with CSS Grid?

Auto-placement is a feature of CSS Grid that allows you to automatically place items in the grid without having to explicitly specify their position. This can be useful when you want to quickly create a grid without having to worry about the exact placement of each item.

13. How do you specify which elements should be placed inside which area of the grid?

You can specify which elements should be placed inside which area of the grid by using the CSS grid-template-areas property. This property defines the grid areas that are available for placement of grid items.

14. How do you span multiple cells of a grid?

You can span multiple cells of a grid by using the grid-column or grid-row properties. You can also use the shorthand grid-area property to do this.

15. How does CSS Grid support alignment of items?

CSS Grid provides a number of ways to align items on the grid. You can use the align-self, align-items, and justify-self properties to align items on the grid.

16. What is an item in terms of CSS Grids?

An item is a grid element that contains content. Items can be either static, meaning they remain in place, or they can be dynamic, meaning they can be rearranged.

17. What is the difference between old flexbox and new flexbox?

The main difference between old flexbox and new flexbox is that old flexbox only worked with one dimensional layouts, while new flexbox can work with both one and two dimensional layouts. This means that new flexbox is much more powerful and versatile than old flexbox.

18. What is the best way to organize media queries for responsive layouts?

One way to organize media queries for responsive layouts is by using a mobile-first approach. This means that you start by writing CSS rules for mobile devices and then progressively add more rules for larger screen sizes as you move up through media query breakpoints. Another approach is to write your media queries based on content, so that you have different rules for different types of content.

19. What is the difference between absolute positioning and fixed positioning?

With absolute positioning, an element can be placed anywhere on a page, regardless of other elements on the page. With fixed positioning, an element is locked in place on the page, meaning it will not move even if the page is scrolled.

20. Are there any browser compatibility issues that need to be taken into consideration when using CSS Grid?

Yes, there are some browser compatibility issues to be aware of when using CSS Grid. The most notable issue is that Internet Explorer 10 and 11 do not support CSS Grid. This can be remedied by using a polyfill or fallback solution, such as using floats or Flexbox.