Remove .btn-outline-inverse

docs/index.html

@@ -7,7 +7,7 @@ layout: home
     <span class="bd-booticon outline">B</span>
     <p class="lead">Bootstrap is the most popular HTML, CSS, and JS framework in the world for building responsive, mobile-first projects on the web.</p>
     <p class="lead">
-      <a href="{{ site.baseurl }}/getting-started/download/" class="btn btn-outline-inverse btn-lg" onclick="ga('send', 'event', 'Jumbotron actions', 'Download', 'Download {{ site.current_version }}');">Download Bootstrap</a>
+      <a href="{{ site.baseurl }}/getting-started/download/" class="btn btn-lg" onclick="ga('send', 'event', 'Jumbotron actions', 'Download', 'Download {{ site.current_version }}');">Download Bootstrap</a>
     </p>
     <p class="version">Currently v{{ site.current_version }}</p>
     {% include ads.html %}