Based on how you've configured min:yui, use either of below and test -
pom.xml:
<!-- If this is zero, you will get line breaks after every line in the aggregated file. -->
<linebreakpos>-1</linebreakpos>
OSGI config:
min:yui;line-break=-1
Default config for CSS processors in the format: "mode:(name(;options))". eg: min:yui;obfuscate=true (htmllibmanager.processor.css)
YUI Compressor
--line-break
Some source control tools don't like files containing lines longer than,
say 8000 characters. The linebreak option is used in that case to split
long lines after a specific column. It can also be used to make the code
more readable, easier to debug (especially with the MS Script Debugger)
Specify 0 to get a line break after each semi-colon in JavaScript, and
after each rule in CSS.