Add less transparent bg to scrolled nav

Reposition the background images

package.json

@@ -1,6 +1,6 @@
 {
   "name": "wedding",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "private": true,
   "engines": {
     "node": ">=6.5",

src/components/Layout/Layout.css

@@ -13,6 +13,10 @@ html {
   line-height: 1.375; /* ~22px */
 }
 
+body {
+  overflow-x: hidden;
+}
+
 a {
   color: #0074c2;
 }

src/components/Navigation/Navigation.css

@@ -4,8 +4,14 @@
   right: 0;
   left: 0;
   height: 40px;
-  background: rgba(0, 0, 0, 0.1);
   overflow: hidden;
+  z-index: 100;
+  background: rgba(0, 0, 0, 0.1);
+  transition: background 0.3s, ease-in;
+}
+
+.navDark {
+  background: rgba(60, 60, 60, 0.95);
 }
 
 .container {

src/components/Navigation/Navigation.js

@@ -8,12 +8,40 @@ class Navigation extends React.Component {
     current: PropTypes.string,
   };
 
+  constructor(props) {
+    super(props);
+    this.state = {
+      scrollAtTop: true,
+    };
+  }
+
+  componentDidMount() {
+    window.addEventListener('scroll', this.handleScroll);
+  }
+
+  componentWillUnmount() {
+    window.removeEventListener('scroll', this.handleScroll);
+  }
+
+  handleScroll = (event) => {
+    const scrollTop = event.srcElement.body.scrollTop;
+    this.setState({
+      scrollAtTop: scrollTop < 10,
+    });
+  };
+
   render() {
     if (!this.props.current) {
       return null;
     }
     return (
-      <div className={s.root} role="navigation">
+      <div
+        className={[
+          s.root,
+          this.state.scrollAtTop ? null : s.navDark,
+        ].join(' ')}
+        role="navigation"
+      >
         <div className={s.container}>
           <Link className={[s.link, this.props.current === 'home' ? s.active : null].join(' ')} to="/">RSVP</Link>
           <Link className={[s.link, this.props.current === 'ceremony' ? s.active : null].join(' ')} to="/church">Church</Link>

src/routes/accomodation/Accomodation.css

@@ -12,6 +12,7 @@
   background: url('/img/offley_2560.jpg');
   background-size: cover;
   background-position-x: 54%;
+  background-position-y: 66%;
   background-color: #c1c1c1;
   filter: grayscale(1) brightness(0.4);
   z-index: -1;

src/routes/ceremony/Ceremony.css

@@ -12,6 +12,7 @@
   background: url('/img/church_2560.jpg');
   background-size: cover;
   background-position-x: 54%;
+  background-position-y: 66%;
   background-color: #c1c1c1;
   filter: grayscale(1) brightness(0.4);
   z-index: -1;

src/routes/home/Home.css

@@ -12,6 +12,7 @@
   background: url('/img/prague_2560.jpg');
   background-size: cover;
   background-position-x: 54%;
+  background-position-y: 66%;
   background-color: #c1c1c1;
   filter: grayscale(1) brightness(0.6);
   z-index: -1;

src/routes/reception/Reception.css

@@ -12,6 +12,7 @@
   background: url('/img/offley_2560.jpg');
   background-size: cover;
   background-position-x: 54%;
+  background-position-y: 66%;
   background-color: #c1c1c1;
   filter: grayscale(1) brightness(0.4);
   z-index: -1;

src/routes/rsvp/Rsvp.css

@@ -12,6 +12,7 @@
   background: url('/img/cervenalhota_2560.jpg');
   background-size: cover;
   background-position-x: 30%;
+  background-position-y: 66%;
   background-color: #c1c1c1;
   filter: grayscale(1) brightness(0.6);
   z-index: -1;

src/routes/transport/Transport.css

@@ -12,6 +12,7 @@
   background: url('/img/offley_2560.jpg');
   background-size: cover;
   background-position-x: 54%;
+  background-position-y: 66%;
   background-color: #c1c1c1;
   filter: grayscale(1) brightness(0.4);
   z-index: -1;