Question

I am writing a page where I need an html table to maintain a set size. I need the headers at the top of the table to stay there at all times but I also need the body of the table to scroll no matter how many rows are added to the table.

I want it to look like method 2 in this url: http://www.cssplay.co.uk/menu/tablescroll.html

I have tried doing this but no scrollbar appears:

tbody {
  height: 80em;
  overflow: scroll;
}

<table border=1 id="qandatbl" align="center">
  <tr>
    <th class="col1">Question No</th>
    <th class="col2">Option Type</th>
    <th class="col1">Duration</th>
  </tr>

  <tbody>
    <tr>
      <td class='qid'></td>
      <td class="options"></td>
      <td class="duration"></td>
    </tr>
  </tbody>
</table>

Answer 1

Something like this?

http://jsfiddle.net/TweNm/

The idea is to wrap the <table> in a non-statically positioned <div> which has an overflow:auto CSS property. Then position the elements in the <thead> absolutely.

#table-wrapper {
  position:relative;
}
#table-scroll {
  height:150px;
  overflow:auto;  
  margin-top:20px;
}
#table-wrapper table {
  width:100%;

}
#table-wrapper table * {
  background:yellow;
  color:black;
}
#table-wrapper table thead th .text {
  position:absolute;   
  top:-20px;
  z-index:2;
  height:20px;
  width:35%;
  border:1px solid red;
}

<div id="table-wrapper">
  <div id="table-scroll">
    <table>
        <thead>
            <tr>
                <th><span class="text">A</span></th>
                <th><span class="text">B</span></th>
                <th><span class="text">C</span></th>
            </tr>
        </thead>
        <tbody>
          <tr> <td>1, 0</td> <td>2, 0</td> <td>3, 0</td> </tr>
          <tr> <td>1, 1</td> <td>2, 1</td> <td>3, 1</td> </tr>
          <tr> <td>1, 2</td> <td>2, 2</td> <td>3, 2</td> </tr>
          <tr> <td>1, 3</td> <td>2, 3</td> <td>3, 3</td> </tr>
          <tr> <td>1, 4</td> <td>2, 4</td> <td>3, 4</td> </tr>
          <tr> <td>1, 5</td> <td>2, 5</td> <td>3, 5</td> </tr>
          <tr> <td>1, 6</td> <td>2, 6</td> <td>3, 6</td> </tr>
          <tr> <td>1, 7</td> <td>2, 7</td> <td>3, 7</td> </tr>
          <tr> <td>1, 8</td> <td>2, 8</td> <td>3, 8</td> </tr>
          <tr> <td>1, 9</td> <td>2, 9</td> <td>3, 9</td> </tr>
          <tr> <td>1, 10</td> <td>2, 10</td> <td>3, 10</td> </tr>
          <!-- etc... -->
          <tr> <td>1, 99</td> <td>2, 99</td> <td>3, 99</td> </tr>
        </tbody>
    </table>
  </div>
</div>