.error_table {
    font-family: Arial, Helvetica, sans-serif;
    width: 100%;
}

.error_table tr th{
    font-weight: bold;
    border: 5px solid black;
    padding-top: 12px;
    padding-bottom: 12px;
    text-align: left;
    background-color: #838383;
}

.error_table tr td {
    border: 1px solid #ddd;
    padding: 8px;
}

.error_table tr:nth-child(even){background-color: #525252;}

.error_table tr:hover {background-color: #ddd;}

.strong {
    font-weight: bold;
}