reset scroll position

src/router/index.js

@@ -72,7 +72,19 @@ const routes = [
 
 const router = new VueRouter({
   base: process.env.BASE_URL,
-  routes
+  routes,
+  scrollBehavior(to, from, savedPosition) {
+    if (savedPosition) {
+      return savedPosition;
+    }
+    if (to.hash) {
+      return {
+        selector: to.hash
+      };
+    }
+
+    return { x: 0, y: 0 };
+  }
 });
 
 const vueBodyClass = new VueBodyClass(routes);