#leftColumn {
    padding-right: 15px;
    overflow-y: auto;
    transition-duration: 0.1s;
}

#midColumn {
    overflow-y: auto;
    display: inline-grid;
    align-content: flex-start;
}

#rightColumn {
    width: 450px;
    transition-duration: 0.1s;
    vertical-align: top;
}

.column {
    min-height: 100%;
    height: 100%;
    display: inline-block;
    margin-top: 4px;
}