'top' Example
<html> <body> <p> <center> <img id="myImg" src="http://www.java2s.com/style/logo.png" width=74 height=100" style="position:relative"> </p> </center> <input type="button" value="Set top property to 100" onclick="myImg.style.top=100"> <input type="button" value="Set top property to 200" onclick="myImg.style.top=200"> <input type="button" value="Restore image position" onclick="myImg.style.top=0"> </body> </html>