Move out inline style to .scss file

Author: gets0ul

__tests__/shared/components/Header/__snapshots__/index.jsx.snap

@@ -2,11 +2,7 @@
 
 exports[`Default render 1`] = `
 <div
-  style={
-    Object {
-      "zIndex": 2,
-    }
-  }
+  className="src-shared-components-Header-___style__nav-header-wrapper___2HtiH"
 >
   <TopNav
     loggedIn={true}

src/shared/components/Header/index.jsx

@@ -5,6 +5,8 @@ import { config } from 'topcoder-react-utils';
 import Logo from 'assets/images/tc-logo.svg';
 import { tracking } from '../../actions';
 
+import './style.scss';
+
 let TopNavRef;
 let LoginNavRef;
 
@@ -69,7 +71,7 @@ const Header = ({
 
   if (TopNavRef) {
     return (
-      <div style={{ zIndex: 2 }}>
+      <div styleName="nav-header-wrapper">
         <TopNavRef
           menu={headerMenu || config.HEADER_MENU}
           rightMenu={(