<!DOCTYPE html> <html> <head></head> <body onload="document.getElementById('v').firstChild.data = ' a ';"> <div style="position:absolute; top: 50px; left: 50px; border: 2px solid orange;" id="v"> <select style="width: 200%"> <option style="visibility: collapse; overflow: auto; display: table-footer-group;">X</option> </select> </div> </body> </html>