CSS Grid Layout Module

Grid Layout

The CSS Grid Layout Module offers a grid-based layout system, with rows and columns, making it easier to design web pages without having to use floats and positioning.

Grid Elements

A grid layout consists of a parent element, with one or more child elements.

  
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Display Property

An HTML element becomes a grid container by setting the display property to grid or inline-grid.

.grid-container {
  display: grid;
}

Example

.grid-container {
  display: inline-grid;
}

All direct children of the grid container automatically become grid items.

Grid Columns

The vertical line of grid items are called columns.

Grid Rows

The horizontal line of grid items are called rows.

Grid Gaps

The space between each column/row are called gaps.

You can adjust the gap size by using one of the following properties:

grid-column-gap
grid-row-gap
grid-gap

.grid-container {
  display: grid;
  grid-column-gap: 50px;
}

Example

The grid-row-gap property sets the gap between the rows:

.grid-container {
  display: grid;
  grid-row-gap: 50px;
}

Example

The grid-gap property is a shorthand property for the grid-column-gap and the grid-row-gap properties:

.grid-container {
  display: grid;
  grid-gap: 50px 100px;
}

Example

The grid-gap property can also be used to set both the row gap and the column gap in one value:

.grid-container {
  display: grid;
  grid-gap: 50px;
}

Grid Lines

The line between columns are called column lines.

The line between rows are called row lines.

Refer to line numbers when placing a grid item in a grid container:

.item1 {
  grid-column-start: 1;
  grid-column-end: 3;
}

Example

Place a grid item at row line 1, and let it end on row line 3:

.item1 {
  grid-row-start: 1;
  grid-row-end: 3;
}