Instead of wrapping labels and inputs inside div element and styling them, we can instead use a description list (dl, dt & dd). It may seem strange, however it makes sense in regard of the semantic meaning behind a description list: the terms are labels, and they identify controls for the user. Thus, you can wrap form controls in description list elements.
<form action="#">
<fieldset>
<dl>
<dt><label for="text_field">Input Field</label></dt>
<dd><input id="text_field" name="text_field" type=
"text"></dd>
<dt><label for="another_field">Another Field</label></dt>
<dd><input id="another_field" name="another_field" type=
"text"></dd>
</dl>
</fieldset>
</form>