massive CL is massive

src/site/docs/editor/getting-started/index.html

Index: src/site/docs/editor/getting-started/index.html
diff --git a/src/site/docs/editor/getting-started/index.html b/src/site/docs/editor/getting-started/index.html
index 7557e6916c0462bd60508cfda8ad84c8bead0f9f..a7c646ffdc67092627cfa5cfeca6c2598c18dc8e 100644
--- a/src/site/docs/editor/getting-started/index.html
+++ b/src/site/docs/editor/getting-started/index.html
@@ -15,18 +15,18 @@ Follow this tutorial to install and use Dart Editor on
 <span class="linux">Linux.</span>
 <span class="mac">Mac OS X.</span>
 <span class="win">Windows.</span>
-<br>
-(These instructions are available for
-    <label>
-      <input type="radio" name="osChoices" id="win">
-      Windows</input></label>,
-    <label>
-      <input type="radio" name="osChoices" id="linux" checked="true">
-      Linux</input>
-      </label>, and
-    <label>
-      <input type="radio" name="osChoices" id="mac">
-      Mac</input></label>.)
+</p>
+
+<p>
+These instructions are available for
+    <input type="radio" name="osChoices" id="win">
+    <label class="os-choice" for="win">Windows</label>,
+
+    <input type="radio" name="osChoices" id="linux" checked="true">
+    <label class="os-choice" for="linux">Linux</label>, or
+
+    <input type="radio" name="osChoices" id="mac">
+    <label class="os-choice" for="mac">Mac</label>.
 </p>
 
 <p>
@@ -265,14 +265,14 @@ In this step, you'll open a sample web app and run it in Dartium.
     which displays sunflower.html.
     </p>
 
-    <aside class="warning">
-    <b>Important:</b>
-    Dartium is a technical preview,
-    and it might have security and stability issues.
+    <aside>
+      <div class="alert">
+        <strong>Warning:</strong>
+        Dartium is a technical preview,
+        and it might have security and stability issues.
 
-    <blockquote>
-    <b>Do not use Dartium as your primary browser!</b>
-    </blockquote>
+        <b>Do not use Dartium as your primary browser!</b>
+      </div>
     </aside>
   </li>