Simply using CSS and adding an content div, you can achieve this, like below
$(document).ready(function(){
$('.bxslider').bxSlider({
mode: 'fade',
});
});
.bannerDetail {
color: #fff;
top: 38px;
left: 221px;
position: absolute;
font-size: 50px;
}
<ul class="bxslider">
<li><img src="http://bxslider.com/images/730_200/tree_root.jpg" title="Funky roots" />
<div class="textDetail">Funky roots</div>
</li>
<li><img src="http://bxslider.com/images/730_200/hill_road.jpg" title="The long and winding road" />
<div class="textDetail">The long and winding road</div>
</li>
<li><img src="http://bxslider.com/images/730_200/trees.jpg" title="Happy trees" />
<div class="textDetail">Happy trees</div>
</li>
</ul>
WorkingExanple: http://codepen.io/JoyCoder/pen/JYgzNL