h1 {
    text-align: center;
}
h3 {
    text-align:center;
}

.container {
    width: 1000px;
    height: auto;
    grid-template-rows: 90px 1fr 110px;
    grid-template-columns: 80px 1fr;
    border: 5px magenta ridge;
    margin: 10px;
}

.main {
    background-color: gold;
    height: 450px;
    width: 1000px;
    grid-area: main;
    padding: 4px;
    overflow-y: scroll;
}

.center {
    display: grid;
    place-items: center;
}