       <li id="mount-holes-wrapper">
                    <span class="label">Mount Holes</span>
                    <input id="mount-holes-num" class="input-style placeholder small" name="mount-holes-num" placeholder="number of holes" />
                    <input id="mount-holes-size" class="input-style placeholder small" name="mount-holes-size" placeholder="diameter (mm)" />
                    <span data-id="mount-holes-help" class="help">&nbsp;</span>
                    <div id="mount-holes-help" class