.myClass{
    color: red;
}

.table {
     table-layout: fixed;
     width: 100%;
 }

th:nth-child(1) {
    width: 150px;
}

th:nth-child(2) {
    width: 60px;
}

th:nth-child(3) {
    width: 40px;
}
th:nth-child(4) {
    width: 42px;
}

th:nth-child(5) {
    width: 70px;
}