Fix: Position fixed highlight

test/index.html

@@ -20,6 +20,7 @@
             This is a very long text!
             This is a very long text!
         </div>
+        <div class="fixed-footer">This is a footer!</div>
         <div>
             <img src="http://7xn2zy.com1.z0.glb.clouddn.com/blog_elf.jpg">
         </div>

test/style.css

@@ -8,4 +8,9 @@ html {
 }
 .border {
     border: 15px solid #fff;
+}
+.fixed-footer {
+    position: fixed;
+    left: 0;
+    bottom: 0;
 }