Target specific element

Target a specific element with no class or id

HTML

<h2 id="Panel" class=""><a href="#" >SEO</a></h2>
<fieldset>
    <div class="FormItem">
        <p>Some text</p>
        <p>Some text</p>
        <p>Some text</p>
    </div>
    <div class="FormItem">
        <p>Some text</p>
        <textarea rows="2" cols="20" style="height: 40px;"></textarea>
    </div>
    <div class="FormItem">
        <p>Some text</p>
        <p>Some text</p>
        <p>Some text</p>
    </div>
</fieldset>

JavaScript

$(".mktoFieldWrap").next("mktoLabel").find('.FormItem:nth-child(2) textarea').css("background-color", "red");