<style>
    #customers {
      font-family: Arial, Helvetica, sans-serif;
      border-collapse: collapse;
      width: 100%;
    }

    #customers td, #customers th {
      border: 1px solid #ddd;
      padding: 8px;
    }

    #customers tr:nth-child(even){background-color: #f2f2f2;}

    #customers tr:hover {background-color: #ddd;}

    #customers th {
      padding-top: 12px;
      padding-bottom: 12px;
      text-align: left;
      background-color: grey;
      color: white;
    }
</style>