During reviews, if one enters the kun’yomi reading when WaniKani wants the on’yomi reading, it displays the message “WaniKani is looking for the on’yomi reading.” Recently this message has started displaying with the wrong z-index, causing it to render below the buttons and get cut off. (See picture below.)
It looks like you guys attempted to fix this by setting the z-index of
#answer-exception to 1000. However, this does not work because the buttons are in a different stacking context compared to
#answer-exception. In order to fix this, you need to change the z-index of an ancestor of
#answer-exception that is in the same stacking context as an ancestor of the buttons. For example, changing the z-index of
#question from 10 to 11 fixes this without causing any obvious problems.
Reference: MDN article.
Picture Illustrating Bug: