updated content of overflow

Author: khan4019

css.html

@@ -264,10 +264,12 @@ <h2>11. pre processor</h2>
 </div>
 <div id="svg_canvas">
   <h2>12. overflow</h2>
+  <p><strong>Question:</strong> Describe Overflow</p>
+  <p><strong>Answer:</strong> overflow property deals with the content if content size exceeds the allocated size for the content. You can make extra content visible, hidden, scroll or auto (viewport default behavior).</p>
   <p><strong>Question:</strong> Does overflow: hidden create a new block formatting context?</p>
   <pre><code>
 &lt;style&gt;<br/>  div {<br/>    overflow: hidden;<br/>  }<br/>  p {<br/>    float: left;<br/>  }<br/>&lt;/style&gt;<br/>&lt;div&gt;<br/>    &lt;p&gt;I am floated&lt;/p&gt;<br/>    &lt;p&gt;So am I&lt;/p&gt;<br/>&lt;/div&gt;<br/>
-  </code></pre>
+  </code></pre>  
   <p><strong>Answer:</strong> yes</p>
   <p>ref: <a href="http://css-tricks.com/the-css-overflow-property/">overflow</a> (read the link and add something from it)</p>
 </div>
@@ -359,13 +361,13 @@ <h2>temporary list of questions</h2>
   <li>text effect in css3</li>  
   <li>reset css</li>  
   <li>what is filter? why would u use it?</li>
-  <li>what is conditional css</li>
-  <li>what is overflow in css</li>  
+  <li>what is conditional css</li>  
   <li>@import/li>
   <li>sprites</li>
   <li>difference display:none and visibility:hidden</li>
   <li>:after and :before</li>
   <li>pseudo classes</li>
+  <li>vertical align center</li>
 </ul>
   <h2>References</h2>
   <ul>