.tablesorter, .tablesorter .tablesorter-filter {
    width: auto;
}

.tablesorter {
    width: auto;
}
.tablesorter .tablesorter-filter {
    width: 50px;
}

.tablesorter .tablesorter-filter-row td:nth-child(4n+1) .tablesorter-filter {
    width: 80px;
}
.tablesorter .tablesorter-filter-row td:nth-child(4n+2) .tablesorter-filter {
    width: 40px;
}

.tablesorter .tablesorter-filter {
    width: 100%;
}