simple img browser ui with bootstrap

gistfile1.html

    <div class='row-fluid'>
        <div class='span6'>
            <div class='row-fluid'>
                <div>
                    <form class="navbar-search pull-left">
                        <input type="text" class="search-query" placeholder="Search" style="background-color: white; border-color: #ccc;">

                    </form>
                </div>  
            </div>
            <ul class="thumbnails">
                <li>
                <a href="#" class="thumbnail">
                    <img src="http://placekitten.com/100/75" alt="">
                </a>
                </li>
                <li>
                <a href="#" class="thumbnail">
                    <img src="http://placekitten.com/100/75" alt="">
                </a>
                </li>
                <li>
                <a href="#" class="thumbnail">
                    <img src="http://placekitten.com/100/75" alt="">
                </a>
                </li>
                <li>
                <a href="#" class="thumbnail">
                    <img src="http://placekitten.com/100/75" alt="">
                </a>
                </li>
                <li>
                <a href="#" class="thumbnail">
                    <img src="http://placekitten.com/100/75" alt="">
                </a>
                </li>
                <li>
                <a href="#" class="thumbnail">
                    <img src="http://placekitten.com/100/75" alt="">
                </a>
                </li>
                <li>
                <a href="#" class="thumbnail">
                    <img src="http://placekitten.com/100/75" alt="">
                </a>
                </li>
                <li>
                <a href="#" class="thumbnail">
                    <img src="http://placekitten.com/100/75" alt="">
                </a>
                </li>
                <li>
                <a href="#" class="thumbnail">
                    <img src="http://placekitten.com/100/75" alt="">
                </a>
                </li>
                <li>
                <a href="#" class="thumbnail">
                    <img src="http://placekitten.com/100/75" alt="">
                </a>
                </li>
                <li>
                <a href="#" class="thumbnail">
                    <img src="http://placekitten.com/100/75" alt="">
                </a>
                </li>
                <li>
                <a href="#" class="thumbnail">
                    <img src="http://placekitten.com/100/75" alt="">
                </a>
                </li>
                <li>
                <a href="#" class="thumbnail">
                    <img src="http://placekitten.com/100/75" alt="">
                </a>
                </li>
                <li>
                <a href="#" class="thumbnail">
                    <img src="http://placekitten.com/100/75" alt="">
                </a>
                </li>

            </ul>
        </div>
        <div class='span6 hero-unit'>
            <div class='row-fluid'>
                <div class='span6'>
                    <h3>Kitten Logo</h3>
                </div>    
                <div class='span6' style="text-align: right;">
                    <button class="btn" type="button">Update File</button>
                </div>    
            </div>
            <div class='well'>
                    <img src="http://placekitten.com/300/250" alt="">
            </div>
            <h4>Tags:</h4>
            <textarea class='span12'>Kittens, Daww</textarea>
            <h4>Used by:</h4>
            <div class='row-fluid'>
                <div class='span3'>Campaigns:</div>
                <div class='span9'>Kittens r Us</div>
            </div>
            <div class='row-fluid'>
                <div class='span3'>Guides:</div>
                <div class='span9'>Kitten Care 101, When kittens attack</div>
            </div>
        </div>
    </div>