Added overflow stop for mobile menu, shifting some stuff.

public/App.jsx

@@ -22,6 +22,8 @@
 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 import React from 'react';
+import { connect } from 'react-redux';
+
 import Background from './background/Background';
 import Header from './header/Header';
 import Footer from './footer/Footer';
@@ -31,19 +33,37 @@ import Routes from './page/Routes';
 class App extends React.Component {
   constructor(props) {
     super(props);
+
+    this.onEnteringBound = this.onEntering.bind(this);
+  }
+
+  onEntering() {
+    this.refs.app.scroll({
+      top:  0,
+      left: 0,
+      behavior: 'smooth'
+    });
   }
 
   render() {
+    let clazz = "o-app";
+    if(this.props.menuOpen) clazz += " is-menu-open "
+
     return (
       <HashRouter>
-        <div className="o-app">
-          <Background style="normal" />
+        <div className={clazz} ref="app">
           <Header />
-          <Routes />
+          <Routes onEntering={this.onEnteringBound} />
         </div>
       </HashRouter>
     );
   }
 }
 
-export default App;
+const mapStateToProps = function(state) {
+  return {
+    menuOpen: state.menu.open
+  }
+}
+
+export default connect(mapStateToProps)(App);