#main_container {
    display: flex;
    flex-direction: column;
    height: 100%;
}

#columns_container {
    display: flex;
    flex-grow: 1;
    flex-shrink: 1;
    flex-basis: 0;
    flex-wrap: wrap;
    padding: 0rem;
    margin: 0rem;
}

@media (min-width: 35em) {
    #columns_container {
        flex-wrap: nowrap;
        margin-bottom: 3em;
    }
}

#left_column_container {
    display: none;
}

@media (min-width: 35em) {
    #left_column_container {
        display: flex;
        flex-basis: 10%;
    }
}

#middle_column_container {
    margin: 0rem;
}

@media (min-width: 35em) {
    #middle_column_container {
        display: flex;
        flex-basis: 70%;
        flex-direction: column;
    }
}

#right_column_container {
    display: none;
}

@media (min-width: 35em) {
    #right_column_container {
        display: flex;
        flex-basis: 20%;
    }
}