.table_style {
    font-size: 11pt; 
    font-family: Arial;
    border-collapse: collapse; 
    border: 1px solid silver;
}

.table_style td, th {
    padding: 5px;
}

.table_style thead {
    background: rgba(0, 0, 0, 0.15);
}

.table_style thead > tr > th {
    text-align: center;
}

.table_style tbody > tr:nth-child(even) {
    background: #E0E0E0;
}

.table_style tr:hover {
    background: silver;
    cursor: pointer;
}

.with_index tbody > tr > th {
    text-align: left;
}

.with_index thead > tr > th:nth-child(1) {
    text-align: left;
}