Refactor HTTP subdomains and add textarea. Closes #320.

Author: lgarron

common/input/textarea/index.html

@@ -0,0 +1,24 @@
+---
+title: textarea
+layout: page
+favicon: gray
+background: gray
+---
+
+<style>
+#content textarea {
+  font-size: 4vw;
+}
+</style>
+
+<div id="content">
+  <h1 style="font-size: 5vw;">
+    textarea
+  </h1>
+  <br><br><br>
+  <textarea placeholder="Type here." autofocus></textarea>
+</div>
+
+<div id="footer">
+  This page contains a <code>&lt;textarea&gt;</code> input.
+</div>