.conntainer {
    display: grid;
}

.h1-title {
    text-align: center;
    font-weight: bold;
}

.parent {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-template-rows: repeat(3, 1fr);
    grid-column-gap: 0px;
    grid-row-gap: 0px;
    }

#for_guest {
    grid-row: 7 / 12;
    grid-column: 1 / 3;
    background: #f88;
}

.mini-text {
    font-size: 10px;
}