A grid area is one or more grid cells that make up a rectangular area on the grid. Grid areas are created when you place an item using line-based placement or when defining areas using named grid areas.

Grid areas must be rectangular in nature; it is not possible to create, for example, a T- or L-shaped grid area.
In the example below I have a grid container with two grid items. I have named these with the grid-area property and then laid them out on the grid using grid-template-areas. This creates two grid areas, one covering four grid cells, the other two.
* {box-sizing: border-box;}
.wrapper {
    border: 2px solid #f76707;
    border-radius: 5px;
    background-color: #fff4e6;
}
.wrapper > div {
    border: 2px solid #ffa94d;
    border-radius: 5px;
    background-color: #ffd8a8;
    padding: 1em;
    color: #d9480f;
}
.wrapper {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  grid-template-rows: 100px 100px;
  grid-template-areas: 
    "a a b"
    "a a b";
}
.item1 {
  grid-area: a;
}
.item2 {
  grid-area: b;
}
<div class="wrapper"> <div class="item1">Item</div> <div class="item2">Item</div> </div>
Learn More
Property reference
- grid-template-columns
- grid-template-rows
- grid-auto-rows
- grid-auto-columns
- grid-template-areas
- grid-area
Further reading
- CSS Grid Layout Guide: Basic concepts of grid layout
- CSS Grid Layout Guide: Grid template areas
- Definition of Grid Areas in the CSS Grid Layout specification
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                       Contributors to this page: 
        teoli, 
        rachelandrew
                    
                    
                       Last updated by:
                      teoli,