Html 5 New Stuff

colgroup

Formats columns

<table>
  <colgroup>
    <col span="2" style="background-color:red">
    <col style="background-color:yellow">
  </colgroup>
  <tr>
    <th>ISBN</th>
    <th>Title</th>
    <th>Price</th>
  </tr>
  <tr>
    <td>3476896</td>
    <td>My first HTML</td>
    <td>$53</td>
  </tr>
</table>

datalist

it's like autocomplete

<form action="/action_page.php" method="get">
  <input list="browsers" name="browser">
  <datalist id="browsers">
    <option value="Internet Explorer">
    <option value="Firefox">
    <option value="Chrome">
    <option value="Opera">
    <option value="Safari">
  </datalist>
  <input type="submit">
</form>

different types of text formats

<em>Emphasized text</em><br>
<strong>Strong text</strong><br>
<code>A piece of computer code</code><br>
<samp>Sample output from a computer program</samp><br>
<kbd>Keyboard input</kbd><br>
<var>Variable</var>

optgroup

<[re> <select>

 <optgroup label="Swedish Cars">
   <option value="volvo">Volvo</option>
   <option value="saab">Saab</option>
 </optgroup>
 <optgroup label="German Cars">
   <option value="mercedes">Mercedes</option>
   <option value="audi">Audi</option>
 </optgroup>

</select> </pre>