default css plus one addition($window-body-background-color: #ffffff !important; )
By default, window body inherits the background color from it's parent which is a blueish hue. My company wants to add custom styling so that it looks similar to the above image. As such, we created a custom theme which at the moment only has one change which is adding the background color of white to window-body-background.Doing this causes the buttons to get overlapped by the white background. Some investigation has lead me to this portion of the markup
Removing padding-bottom from that via IE's dev tools appears to fix the issue. Normally I would just alter the scss for window. However, in this case the styling is being drawn on the element itself not via a class. My suspicion is that IE, being IE, is incorrectly handling padding and since the buttons are in a tool bar drawn with top/left it is choosing to draw them after the last physical thing in the mark up and over top of the padding.
This looks fine in the newest versions of chrome and firefox. Also, removing the padding-bottom seems to have no change on the styling at least in chrome.