Crop widget has zero size after choosing image

CSS styles may be overridden not only by class / id selectors, but also by general "*" selector.
We know at least one common style which breaks the widget:

* {    
   -webkit-transition: all 0.5s ease-in-out;
   -moz-transition: all 0.5s ease-in-out;
   -o-transition: all 0.5s ease-in-out;
   transition: all 0.5s ease-in-out;
}<br>