Put simpleParallax and modify logo.php to merge

js/simpleParallaxe/simpleParallax-master/src/helpers/viewport.js

@@ -0,0 +1,33 @@
+class Viewport {
+    constructor() {
+        this.positions = {
+            top: 0,
+            bottom: 0,
+            height: 0,
+        };
+    }
+
+    setViewportTop(container) {
+        // if this is a custom container, user the scrollTop
+        this.positions.top = (container ? container.scrollTop : window.pageYOffset);
+        return this.positions;
+    }
+
+    setViewportBottom() {
+        this.positions.bottom = this.positions.top + this.positions.height;
+        return this.positions;
+    }
+
+    setViewportAll(container) {
+        // if this is a custom container, user the scrollTop
+        this.positions.top = (container ? container.scrollTop : window.pageYOffset);
+        // if this is a custom container, get the height from the custom container itself
+        this.positions.height = (container ? container.clientHeight : document.documentElement.clientHeight);
+        this.positions.bottom = this.positions.top + this.positions.height;
+
+        return this.positions;
+    }
+}
+
+export const viewport = new Viewport();
+export { viewport as default };