When a user selects an image in the fckeditor or ckeditor using webkit browsers like Chrome, Safari, and Opera, the image is covered with a transparent gray overlay, presumably to indicate that it has been selected. This overlay makes it difficult to apply CSS effects to the image within the editor efficiently. This issue seems to be related to the default browser user agent style, as Firefox behaves differently. How can this overlay be targeted, overridden, and disabled?
Frustrating overlay on images when selected in webkit / opera browsers
Desired image selection appearance without overlay in editors on Firefox / IE browsers