YUI Compressor and other minifiers tend to remove unnecessary whitespaces, causing long lines. Safari 5 seems to fail rendering some rules from the css files when the file has more than 5000 characters per line (blog post about my experiences).
UglifyJS has a
--max-line-len (default 32K characters) and the author says at the page
I’ve seen both FF and Chrome croak when all the code was on a single line of around 670K
What is the maximum safe line length in css files? I would like to support most of the still active browsers, while still removing unnecessary whitespaces. Any references to specifications would be useful.