Fix menu overflow container

Author: mrmrs

index.html

@@ -53,7 +53,7 @@
     <main class="w-100 bt b--black-10">
       <section class="bt b--black-10 bg-black-0125 w-100">
 <article class="pb4 pb5-ns" style="background-color: #1b418d;">
-      <header class="ph3 ph5-ns w-100 bg-transparent pv3 mb5 bb b--black-20 overflow-container">
+      <header class="ph3 ph5-ns w-100 bg-transparent pv3 mb5 bb b--black-20 overflow-auto">
 <div class="nowrap">
         <a title="Getting Started" href="#getting-started"
             class="pb2-ns f6 fw6 dim link white-80 mr2 mr3-m mr4-l dib">

src/templates/index.html

@@ -12,7 +12,7 @@
     <main class="w-100 bt b--black-10">
       <section class="bt b--black-10 bg-black-0125 w-100">
 <article class="pb4 pb5-ns" style="background-color: #1b418d;">
-      <header class="ph3 ph5-ns w-100 bg-transparent pv3 mb5 bb b--black-20 overflow-container">
+      <header class="ph3 ph5-ns w-100 bg-transparent pv3 mb5 bb b--black-20 overflow-auto">
 <div class="nowrap">
         <a title="Getting Started" href="#getting-started"
             class="pb2-ns f6 fw6 dim link white-80 mr2 mr3-m mr4-l dib">