table {
    margin-bottom: 20px;
    border: 1px solid #dddddd;
    border-collapse: collapse;
}
table th {
    font-weight: bold;
    padding: 5px;
    background: #efefef;
    border: 1px solid #dddddd;
}
table td {
    border: 1px solid #dddddd;
    padding: 5px;
    text-align:center;
}