1# CSS Interview Topics

CSS is one of the essential skills for frontend developers and a topic that is normally asked about in interview process.

• Flexbox Layout
• Grid Layout
• When to use it?

Flexbox Layout

Flexbox Layout was designed for a layout in one dimension, either a row or a column.

Property	Values
display:	flexbox, inline-flex;
flex-direction:	row, row-reverse, column, column-reverse;
flex-wrap:	nowrap, wrap, wrap-reverse;
flex-flow:	<‘flex-direction’>, <‘flex-wrap’>
justify-content:	flex-start, flex-end, center, space-between, space-around;
align-items:	flex-start, flex-end, center, baseline, stretch;
align-content:	flex-start, flex-end, center, space-between, space-around, stretch;

Flex Properties

Grid Layout

Grid was designed for two-dimensional layout, rows and columns at the same time.

Property	Description
column-gap	Specifies the gap between the columns
gap	A shorthand property for the row-gap and the column-gap properties
grid	A shorthand property for the grid-template-rows, grid-template-columns, grid-template-areas, grid-auto-rows, grid-auto-columns, and the grid-auto-flow properties
grid-area	Either specifies a name for the grid item, or this property is a shorthand property for the grid-row-start, grid-column-start, grid-row-end, and grid-column-end properties
grid-auto-columns	Specifies a default column size
grid-auto-flow	Specifies how auto-placed items are inserted in the grid
grid-auto-rows	Specifies a default row size
grid-column	A shorthand property for the grid-column-start and the grid-column-end properties
grid-column-end	Specifies where to end the grid item
grid-column-gap	Specifies the size of the gap between columns
grid-column-start	Specifies where to start the grid item
grid-gap	A shorthand property for the grid-row-gap and grid-column-gap properties
grid-row	A shorthand property for the grid-row-start and the grid-row-end properties
grid-row-end	Specifies where to end the grid item
grid-row-gap	Specifies the size of the gap between rows
grid-row-start	Specifies where to start the grid item
grid-template	A shorthand property for the grid-template-rows, grid-template-columns and grid-areas properties
grid-template-areas	Specifies how to display columns and rows, using named grid items
grid-template-columns	Specifies the size of the columns, and how many columns in a grid layout
grid-template-rows	Specifies the size of the rows in a grid layout
row-gap	Specifies the gap between the grid rows

Grid Properties

The fr unit

The fr unit represents a fraction of the available space in the grid container.

When to use it?

The main difference between the Flexbox and Grid layout is that Flexbox creates content-first design while Grid creates layout-first design.

If you are well aware of your content before making the layout, then the better option will be to use Flexbox, otherwise opt for the Grid.

Flexbox layout is the most appropriate for the components and small-scale layouts.

Grid layout is more focused to larger scale layouts which aren’t linear in their design.