.x-grid3-header-offset {
    width: auto;
}

.ext-ie .x-grid3 table.ux-grid-group-table, .ext-safari .x-grid3 table.ux-grid-group-table {
    table-layout: auto;
}

.ux-grid-hd-group-cell {
    background: url(../../../../extjs/resources/images/default/grid/grid3-hrow.gif) repeat-x bottom;
}