How to highlight the background of alternate table row using CSS

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Answer: Use the CSS ":nth-child" selector

The following example will show you how to highlight the background of alternate table row using the CSS3 :nth-child selector. The :nth-child(N) pseudo-class accepts an argument N, which can be a keyword, a number, or a number expression of the form xn+y where x and y are integers (e.g. 1n, 2n, 3n, 2n+1, 3n-2, …).

  • <!DOCTYPE html>
  • <html lang="en">
  • <head>
  • <meta charset="utf-8">
  • <title>Highlighting Alternate Table Row</title>
  • <style type="text/css">
  •     table{
  •         margin: 30px;
  •         border-collapse: collapse;
  •     }
  •     table tr{
  •         border-bottom: 1px solid #666;
  •     }
  •     table tr:nth-child(2n){
  •         background: #f2f2f2;
  •     }
  •     table th, table td{
  •         padding: 10px;
  •     }
  • </style>
  • </head>
  • <body>
  •     <table>
  •         <tr>
  •             <th>Row</th>
  •             <th>First Name</th>
  •             <th>Last Name</th>
  •             <th>Email</th>
  •         </tr>
  •         <tr>
  •             <td>1</td>
  •             <td>John</td>
  •             <td>Carter</td>
  •             <td>johncarter@mail.com</td>
  •         </tr>
  •         <tr>
  •             <td>2</td>
  •             <td>Peter</td>
  •             <td>Parker</td>
  •             <td>peterparker@mail.com</td>
  •         </tr>
  •         <tr>
  •             <td>3</td>
  •             <td>John</td>
  •             <td>Rambo</td>
  •             <td>johnrambo@mail.com</td>
  •         </tr>
  •         <tr>
  •             <td>4</td>
  •             <td>Harry</td>
  •             <td>Potter</td>
  •             <td>harrypotter@mail.com</td>
  •         </tr>
  •     </table>
  • </body>
  • </html>

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