CSS Formatting seems to have changed

Updated to the latest version of PhpStorm (2017.3)

The Code re-formatting for CSS seems to have subtly changed.

Before it would format CSS as 

#carousel-area { margin-right: 10px; }

Now it formats this as

#carousel-area {margin-right: 10px;}

without spaces after the first brace and before the last brace.

Is there an option anywhere to turn this back on please as I cannot find one in settings / Code Style / CSS

It's only personal preference, but I like CSS with these spaces next to the braces.