Fix overflow

pkgs/markdown/example/index.html

diff --git a/pkgs/markdown/example/index.html b/pkgs/markdown/example/index.html
index 5eb83fe..e82dd75 100644
--- a/pkgs/markdown/example/index.html
+++ b/pkgs/markdown/example/index.html
@@ -35,7 +35,7 @@
         <div class="toolbar">
           <h2>HTML</h2>
         </div>
-        <div style="padding: 8px;" id="html"></div>
+        <div id="html"></div>
       </div>
     </div>
     </div>

pkgs/markdown/example/style.css

diff --git a/pkgs/markdown/example/style.css b/pkgs/markdown/example/style.css
index 0131847..bcdfe00 100644
--- a/pkgs/markdown/example/style.css
+++ b/pkgs/markdown/example/style.css
@@ -96,7 +96,7 @@
   font-family: "Roboto Mono",monospace;
   font-size: 100%;
   line-height: 26px;
-  overflow: hidden;
+  overflow: auto;
   padding: 2px 2px 1px;
   width: 100%;
 }
@@ -107,3 +107,8 @@
   outline: 0;
   padding-bottom: 0;
 }
+
+#html {
+  overflow: auto;
+  padding: 8px;
+}