#flex-row-container {
    display:flex;
    flex-direction: row;
    justify-content: space-evenly;
}

.container {
    margin: 2vmin;
    padding: 2vmin;
    width: 100%;
    border: 2px solid darkgrey;
    border-radius: 10px;
}

.column-container-heading {
    font-family: monospace;
    text-align: center;
    margin-top: -1vmin;
}