<small>Scrolling outside the URL/image Prevue popup will close the popup.</small>
        </div>
    </div>

    <div class="f nw option">
        <div class="label">
            <strong>Width</strong>
        </div>

        <div class="content">
            <input type="number" name="width">

            <select name="widthUnit">
                <option value="%">%</option>
                <option value="px">Pixels</option>
            </select>

            <small>You can manually specify how wide the Pr