.table_custom_calendar {
    width:90%;
    margin: 20px auto 5px auto;
    border:1px solid #888888;
}

div.calendar-container {
    margin: 0 auto;
    /*max-width:100%;*/
    width:90%;
}
div.calendar-row {
    overflow:auto;
    display:table;
    min-width:100%;
}
div.calendar-cell {
    font-size:x-small;
    padding:2px;
    text-transform:lowercase;
    display:table-cell;
    box-sizing:border-box;
    -moz-box-sizing:border-box; /* Firefox */
}