<html xmlns="http://www.w3.org/1999/xhtml"> <head> <script> function boom() { var newDiv = document.createElementNS("http://www.w3.org/1999/xhtml", "div"); newDiv.style.width = "100px"; newDiv.style.height = "8px"; newDiv.style.background = "lightgreen"; document.getElementById("tr").appendChild(newDiv); } </script> </head> <body onload="boom()"> <table border="1"> <tr id="tr"> <td></td> <td style="padding-left: 10%"><select style="padding-left: 20%; bottom: 10%;"><option style="padding: 0 0 10% 20%; width: 25px;"></option></select></td> </tr> </table> </body> </html>