.gantt-corner-area {
    position: absolute;
    width: 100%;
    overflow: hidden;
}

.gantt-corner-area .gantt-header-row {
    padding-top: 1px;
    border-top: none;
}

.gantt-corner-area .gantt-header-row {
    position: relative;
}

.gantt-corner-area .gantt-header-row .gantt-column-header {
    position: absolute;
    right: 0;
    padding-left: 5px;
    padding-right: 5px;
}