<style>
img {
	float: left; 
	width: 20px;
}

div {
	width: 300px;
}
</style>

very top of the content<img src="foobar.jpg" height="100">
<div>thisis<img src="foobar.jpg" height="74">onerun, next to 2 floats. One intruding, one in this
<span>inline formatting context</span>
</div>
<div><span><img src="foobar.jpg" height="15" width="20">this next inline formatting context has 3 floats. 2 out of those 3 are intruding </span></div>
<span>and now we are back to the left edge. no intrudings at this position.</span>
