Input box issues when using borders

Hi all,

I am having this issue with a border around an input box in storyline (see attached jpg). If I add a border to the box - when storyline publishes it and I embed in RISE the input box defaults to a set size and users can type outside the box.

This does not happen if I just delete the outline. I could just add a box with transparent fill - but wondering why this is happening. There are no states involved.

Thanks,

Steve