Prevent incorrectly capitalized CSS selectors from being stripped

Some wysiwyg editors seem to generate terrible CSS such as:
P {
    PADDING: 0PX;
    MARGIN: 0PX;
}
which due to the capitalized P was not being applied inline.
No. The comment currently seems to be necessary to make the (changed) code understandable. Either we leave the code unchanged, or we make the changed code readable.