Timer warning can overlap images during test delivery

1. Create assessment with one question with a big image floated to the right <img src="" style="float:right" alt="" /> 2. Publish assessment with 10 minute timer 3. Take assessment as student and wait for timer warning to come up Expected result: timer warning does not overlap floated image in question Cheat instead of waiting for timer: use chrome inspector to unhide the warning with class sak-banner-error