Fix page Header's position in Wizard when page size is small

src/components/Header/Header.scss

@@ -25,6 +25,7 @@ $brand-color: #FFF;
   height: 64px;
   position: absolute;
   width: 100%;
+  left: 0;
   top: 0;
   z-index: 999;
   .bannerTitle {