Fixing up some styling on badge demo (Closes #433)

src/badge/demo.css

@@ -38,13 +38,6 @@
 
 .demo-page--badge .wrapper {
   flex-grow: 1;
-
-  display: flex;
-  flex-direction: row;
-  flex-wrap: wrap;
-  justify-content: center;
-  align-content: space-between;
-  align-items: flex-start;
 }
 
 .demo-page--badge .icon {

src/badge/demo.html

@@ -1,6 +1,6 @@
 <div class="demo-preview-block demo-page--badge">
 
-  <section class="toolbar">
+  <section>
     <div class="toolbar">
       <div class="wrapper">
         <div id="el1" class="icon material-icons mdl-badge" data-badge="1">note_add</div>