.container{background: url(img.png) no-repeat 100% 50%;}<div class="container">
<div class="row">
<div class="textblock">
</div>
</div>
</div>.container {display:block; padding:5px; }
.left {width:50%; border-left:1px dotted black;}
.right {width:50%; float:right;}<div class="container">
<div class="left"></div>
<div class="right"></div>
</div>