Update demo.html and normalize.css from master branch

demo.html

@@ -80,6 +80,11 @@
         
         <h1>Embedded content</h1>
         
+        <h3>audio</h3>
+
+        <audio controls></audio>
+        <audio></audio>
+
         <h3>img</h3>
 
         <img src="http://placekitten.com/100/100" alt="">
@@ -89,6 +94,11 @@
         
         <svg style="width:100px; height:100px;"><circle cx="100" cy="100" r="100" fill="#ff0000"></svg>        
 
+        <h3>video</h3>
+
+        <video controls></video>
+        <video></video>
+
         <h1>Grouping content</h1>
         
         <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et m.</p>

normalize.css

@@ -1,4 +1,4 @@
-/*! normalize.css 2011-06-21T18:23 UTC · http://github.com/necolas/normalize.css */
+/*! normalize.css 2011-07-12T10:51 UTC · http://github.com/necolas/normalize.css */
 
 /* =============================================================================
    HTML5 element display
@@ -31,7 +31,7 @@ canvas,
 video {
     display: inline-block;
     *display: inline;
-    zoom: 1;
+    *zoom: 1;
 }
 
 
@@ -335,13 +335,23 @@ input {
     *overflow: visible;  /* 2 */
 }
 
+/*
+ * Corrects overlap and whitespace issue for buttons and inputs in IE6/7
+ * Known issue: reintroduces inner spacing
+ */
+
+table button,
+table input {
+    *overflow: auto;
+}
+
 /*
  * 1. Improves usability and consistency of cursor style between image-type 'input' and others
  * 2. Corrects inability to style clickable 'input' types in iOS
  */
 
 button,
-input[type="button"], 
+html input[type="button"], 
 input[type="reset"], 
 input[type="submit"] {
     cursor: pointer; /* 1 */
@@ -390,7 +400,7 @@ input::-moz-focus-inner {
 
 /*
  * 1. Removes default vertical scrollbar in IE6/7/8/9
- * 2. Improves readability and aligment in all browsers
+ * 2. Improves readability and alignment in all browsers
  */
 
 textarea {