Labels and select form elements are not clearing as they should.

See in the tests.html sample form the section for dummy 3 and dummy 4.

    <div class="column span-2">
    <label for="dummy3">dummy3 select</label>
    </div>

    <div class="column prepend-1 span-5 last">
    <select id="dummy3" name="dummy3">
        <option value="1">Ottawa</option>
        <option value="2">Calgary</option>
        <option value="3">Moosejaw</option>
    </select>
    </div>

    <div class="column span-2">
    <label for="dummy4">dummy4 select</label>
    </div>

    <div class="column span-6 last">
    <select id="dummy4" name="dummy4">
        <option>Favorite pet</option>
            <optgroup label="mammals">
                <option>dog</option>
                <option>cat</option>
                <option>rabbit</option>
                <option>horse</option>
            </optgroup>
            <optgroup label="reptiles">
                <option>iguana</option>
                <option>snake</option>
            </optgroup>
    </select>
    </div>

This will be fixed in the upcoming forms.css file.

Fixed in 0.6.