Hi!
I have just fixed some problem with extension timepicker.
Look, it renders as <input><button>. If input has own style with margin, but button hasn’t, it will render bad in IE and Opera.
For example, default form.css in Yii have this:
div.form input { margin: 0.2em 0 0.5em 0;}
I added this code to /assests/.../css/smootheness/jquery-ui-1.7.2.custom.css:
.ui-datepicker-trigger {vertical-align: top; margin: 0.2em 0 0.5em 0;}
where vertical-align is not nessesary, but margin must be same as in input.
Hope it helps.