*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

.contenedor {
    background: lightgreen;
    display: grid;
   /* grid-template-columns: repeat(auto-fit, 200px);
    grid-template-rows: 1fr 2fr 3fr; */
    grid-template: 200px 200px 200px /repeat(3, 1fr);
   /* column-gap: 10px;
    row-gap: 10px;
    gap: 10px 30px;*/
    height: 100vb;
    justify-content: space-evenly;
    align-content: center;
}

.elemento{
    background: lightblue;
    border: 3px solid blue;
    font-size: 5rem;
    text-align: center;
}