Sonarr/UI/AddSeries/RootFolders/LayoutTemplate.html

<div class="modal-header">
    <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
    <i class="icon-hdd"/>
</div>
<div class="modal-body">
    <div class="input-prepend input-append x-path">
        <span class="add-on">&nbsp;<i class="icon-folder-open"></i></span>
        <input class="span5" type="text" placeholder="Path of the folder to add ...">
        <button class="btn btn-success x-add"><i class="icon-plus"/></button>
    </div>
    <div id="current-dirs"/>
</div>
<div class="modal-footer">
    <button class="btn" data-dismiss="modal">close</button>
</div>