table {
    width: 50%;
    border-collapse: collapse;
    text-align: center;
    vertical-align: middle;
    margin-left:auto; 
    margin-right:auto;
}
thead {
    background-color: rgb(133, 133, 133);
    font-weight: bold;
    text-align: center;
    vertical-align: middle;
}
th,
td {
    border: 1px black;
    padding: 8px;
    border-left: none;
    border-right: none;
    text-align: left;
    vertical-align: middle;
}

table.dataTable tr:nth-child(even) {
    background-color: #dddddd;
  }
table.dataTable tr:nth-child(odd) {
    background-color: rgb(255, 255, 255);
  }
table tr:nth-child(even) {
    background-color: #dddddd;
  }
table tr:nth-child(odd) {
    background-color: rgb(255, 255, 255);
  }


#container{
    text-align: center;
    display: inline-block;
    }