body {
  background-color: #ffff99;
  }
.container {
  display: grid;
  grid-template-rows: 150px 650px;
  grid-template-columns: 250px;
  background-color: #ffff99;
  gap: 10px 10px;
  padding: 10px;
  }
.container > div {
  background-color: #C8C8C8;
  }  
.item2 {
  grid-column: 1 / span 2;
  }