table css

CSS
table, th, td {
  border: 1px solid black;
}Table    <table>

       
      <tr>

         
      <th>Month</th>

         
      <th>Savings</th>

       
      </tr>

       
      <tr>

         
      <td>January</td>

         
      <td>$100</td>

       
      </tr>

      </table>
 #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: #4CAF50;
  color: white;
}.table1 {
  border-collapse: collapse;
}
Source