Board Thread:Support Requests - Getting Started/@comment-25295528-20160619134934/@comment-26143371-20160717110313

For some strange reason, first childs in rows don't have the top left corner as a radius when they span the entire colspan That's because the rule for the upper left corner got overridden by the one for the upper right corner. You need a third rule that overrides both of them:

Also note how the bottom left box with the question mark image in it doesn't have the bottom left corner as a radius? The selector for the lower left corner matches the last child element if it is a  and in that one it matches the first child element  if it is a. Applying that logic to your table matches nothing: The first cell in the last row is the "Braking" cell, however it is a  and not a , so it isn't matched. I don't think there is any general way to match such cells without adding an additional class to the table's cell, something like

and then in the table you can replace with

However if this is supposed to be a general styling for all tables, you'll need more rules for cases where the lowermost row only consists of one cell spanning the entire row, as well as for cases where the left- or rightmost column only contains one cell. And when you're using row-/colspan even more special cases arise, as you've already experienced.

I've found out that is mostly equivalent to having all the rules for each corner. "Mostly" because of the following: Neither of the solutions is perfect, so it's up to you with which one you want to go with, or if you want to do a combination of both.
 * 1) It doesn't work in Internet Explorer 11, which probably is a bug. I don't know how it will behave in IE Edge though.
 * 2) The corners look minorly different (see image)

PS Firefox apparently has a bug which is triggered by your CSS: The background-color of the  overflows the table in the rounded corners, no matter which of the two above methods are used. I could get rid of it by removing the background-color property from this selector: Since you have set a background-color for the cells, it wasn't used anyway.