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

If you take advantage of width: 100vw; and height: 100vh;, the object with these styles applied will stretch to the full width and height of the device.

Also note, there are times padding and margins can get added to your view, by browsers and the like. I added a * global no padding and margins so you can see the difference. Keep this in mind.

*{
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}
.wrapper {
  display: grid;
  border-style: solid;
  border-color: red;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  grid-gap: 10px;
  width: 100vw;
  height: 100vh;
}
.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