<style>
.inlineRoot {
	border: 1px solid green;
	width: 200px;
	height: 200px;
	overflow: hidden;
	font-size: 12px;
}

.blockRoot {
	position: relative;
	top: 100px;
	left: 100px;
}
</style>

<div class=inlineRoot>before<span class=blockRoot>nested</span>after</div>