Solution to Reduce Repition Using the repeat Function

What is your hint or solution suggestion?

  .container {
    font-size: 40px;
    min-height: 300px;
    width: 100%;
    background: LightGray;
    display: grid;
    /* Only change code below this line */

    grid-template-columns: repeat(3, 1fr);

    /* Only change code above this line */
    grid-template-rows: 1fr 1fr 1fr;
    grid-gap: 10px;

Challenge: Reduce Repetition Using the repeat Function

Link to the challenge: