Replace HTML Table with Divs

This ought to do the trick.

<style>
div.block{
  overflow:hidden;
}
div.block label{
  width:160px;
  display:block;
  float:left;
  text-align:left;
}
div.block .input{
  margin-left:4px;
  float:left;
}
</style>

<div class="block">
  <label>First field</label>
  <input class="input" type="text" id="txtFirstName"/>
</div>
<div class="block">
  <label>Second field</label>
  <input class="input" type="text" id="txtLastName"/>
</div>

I hope you get the concept.