Changing that for 3.4.3, thanks.
You can fix it for now by removing one of the two spaces.
Or edit css.php and replace
PHP Code:
/* remove tabs, spaces, newlines, etc. */
$buffer = str_replace(array("\r\n", "\r", "\n", "\t", ' ', ' ', ' '), '', $buffer);
PHP Code:
/* remove tabs, spaces, newlines, etc. */
$buffer = str_replace(array("\r\n", "\r", "\n", "\t"), '', $buffer);
$buffer = str_replace(array(' ', ' ', ' ', ' '), ' ', $buffer);
Also, you have a space between 14 and em, even though that's not causing the issue:
width: 14 em should be width: 14em