How to Setting CSS Code styles in WebStorm?

I wanna Setting below single-line format CSS Code Style in WebStorm. (not a space included after the opening brace and before the closing brace.)

h1 {width:50px;height:50px;}

But It does not exist in Webstrom setting menu (WebStorm - Setting - Code Style - CSS )

and show below style.

h1 { width:50px; height:50px; }

How can I solving this problem?