html, body {
    height: 100%;
    margin: 0;
}

.parent {
    display: grid;
    min-height: 100;
    grid-template-columns: 200px 1fr;
    grid-template-rows: auto 1fr;
    gap: 8px;
}

.header {
    grid-column: 1 / -1;
    font-size: 15px;
    margin-bottom: -10px;
    border-bottom-style: solid;
    border-width: 5px;
}

.left {
    grid-column: 1;
    grid-row: 2;
    font-size: 8px;
    border-right-style: solid;
    border-left-style: solid;
    border-bottom-style: solid;
    border-width: 5px;
}

.content {
    grid-column: 2;
    grid-row: 2;
}