engenes,
<!DOCTYPE HTML>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
.views-field-nothing {
border: 1px solid red;
}
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
<script>
$(function(){
var width = $("html").width();
height = width / 3;
$(".views-field-nothing").each(function(indx, el){
var bg = el.textContent;
bg = "url(" +bg+ ")";
$(el).css({'backgroundImage': bg, 'height' : height, 'width': width})
});
})
</script>
</head>
<body>
<div class="views-field-nothing">
<div class="views">http://goodimg.ru/img/tsvetochek-risunok3.jpg</div>
</div>
<div class="views-field-nothing">
<div class="views">http://agu-shop.ru/images/pink_flower_512x512.png</div>
</div>
<div class="views-field-nothing">
<div class="views">http://www.raskraska.ru/counting/flower-bw.gif</div>
</div>
</body>
</html>