body{
  background-color:#9900FF;
  color: white;
  }

.container{
  display: grid;
  grid-template-columns: repeat(5,1fr);
  grid-template-rows: repeat(5,1fr);

  grid-row-gap: 3px;
  }

.div1 {
  grid-area: 1/1/3/3;
  background-color:black;
  border-style: solid;
  border-color: white;
  color: white;
  }
  
.div2 {
  grid-area: 1/3/3/6;
  background-color:black;
  border-style: solid;
  border-color: white;
  color: white;
  }

.div3 {
  grid-area: 3/1/6/6;
  background-color:black;
  border-style: solid;
  border-color: white;
  color: white;
  }