Test Page CSS

body {
    font-family: Arial, Helvetica, sans-serif
}

table {
    border-collapse: collapse;

    border-left: 1px solid black;
    border-right: 1px solid black;
    border-bottom: 1px solid black;

    margin-top: 5px;

    /*position: absolute;
    left: 0;
    right: 0;
    margin: auto;*/
}

td {
    text-align: center;
    padding: 5px;
}

.dr:nth-child(odd) {
    background-color: #E6E6E6;
}

table caption {
    border-left: 1px solid black;
    border-right: 1px solid black;
    border-top: 1px solid black;
    #border-bottom: 2px solid black;
    padding: 5px;
    font-size: 20px;
}

th {
    border-right: 1px solid black;
    border-bottom: 2px solid black;
}

table, td {
    //border: 1px solid black;
    #border-bottom: 1px solid black;
}