.grid-container {
  display: grid;
  grid-template-columns: auto auto auto;
  background-color: Tomato;
  padding: 10px;
}
.grid-item {
  background-color: white;
  border: 1px solid rgba(0, 0, 0, 0.8);
  padding: 20px;
  font-size: 30px;
  color: red;
  text-align: center;
  /*  background-color: rgba(255, 255, 255, 0.8);
*/
}