web/META-INF/resources/partials/search-in-progress.html

<div class="panel panel-primary post-holder">
    <div class="panel-heading">
        <h4 class="panel-title">
            <strong class="title">Searching ...</strong>
        </h4>
    </div>
    <div class="panel-body">
        <div id="spinner">
            <img src="images/spinner.gif" title="Search in progress">
        </div>
    </div>
</div>