Return the space between cells in a table:
alert(document.getElementById("myTable").style.borderSpacing);
<!DOCTYPE html> <html> <body> <table id="myTable" border="1" style="border-spacing:10px;"> <caption id="myCaption">Monthly Salary</caption> <tr> <th>Item</th> <th>Savings</th> </tr> <tr> <td>CSS</td> <td>$100</td> </tr> <tr> <td>HTML</td> <td>$50</td> </tr> </table>/*from w ww . j a v a2 s.c om*/ <br> <button type="button" onclick="myFunction()">Return the space between the cells in the table</button> <script> function myFunction() { alert(document.getElementById("myTable").style.borderSpacing); } </script> </body> </html>