Thank you for the reply! Yes, I essentially gray out the entire screen when the modal is invoked. The rest of the CSS code for this class is:
So it starts out hidden and only appears when invoked. Is it possible that Opera/IE are somehow blocking out everything else because they think the modal is still in front even when it's hidden?
/* Transition opacity on open */
-webkit-transition: opacity 500ms ease-in;
-moz-transition: opacity 500ms ease-in;
-o-transition: opacity 500ms ease-in;
transition: opacity 500ms ease-in;
/* Hide for now */