Added a footer with a disclaimer for old browsers.

css/styles.css

@@ -4,6 +4,16 @@
     border: none;
 }
 
+footer {
+    width: 100%;
+    text-align: center;
+    position:fixed;
+    bottom: 0px;
+    left: 0px;
+    background: #aaaaaa;
+    padding: 3px;
+}
+
 form {
     margin: 15px;
     float: left;

index.html

@@ -71,5 +71,6 @@
             <button type="button" onclick="SaveSettings(); HideSettings(); return false;">Save and Close</button>
         </form>
     </div>
+    <footer>Version <script>document.write(currentVersion);</script>. Dictionary Builder only guaranteed to work with most up-to-date HTML5 browsers.</footer>
 </body>
 </html>