force css grid container to fill full screen of device

Question

How do I force a css grid container take the full width and height of the device screen for a single page app? Modified example is from Mozilla: Firefox documentation

Answer 1

You can add position: fixed; with top left right bottom 0 attribute, that solution work on older browsers too.

If you want to embed it, add position: absolute; to the wrapper, and position: relative to the div outside of the wrapper.

.wrapper {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;

  display: grid;
  border-style: solid;
  border-color: red;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  grid-gap: 10px;
}
.one {
  border-style: solid;
  border-color: blue;
  grid-column: 1 / 3;
  grid-row: 1;
}
.two {
  border-style: solid;
  border-color: yellow;
  grid-column: 2 / 4;
  grid-row: 1 / 3;
}
.three {
  border-style: solid;
  border-color: violet;
  grid-row: 2 / 5;
  grid-column: 1;
}
.four {
  border-style: solid;
  border-color: aqua;
  grid-column: 3;
  grid-row: 3;
}
.five {
  border-style: solid;
  border-color: green;
  grid-column: 2;
  grid-row: 4;
}
.six {
  border-style: solid;
  border-color: purple;
  grid-column: 3;
  grid-row: 4;
}

  
One
  
Two
  
Three
  
Four
  
Five
  
Six