Download instant.js and include it into your webpage. // only if you want to use the annotation feature... <script type="text/javascript" src="cvi_text_lib.js"></script> // ...else this one only... <script type="text/javascript" src="instant.js"></script> Initialisation class "instant" vary the shadow by adding ishadow followed by the desired opacity in percent: Shadow opacity class "ishadow" - mi