how to acesss all childs of an element in css code example

Example: all child css

//Will select all li under ul
//<ul>
	<li>
		<ul>
			<li></li>
			<li></li>
		</ul>
	</li>
</ul>
Affected li = 4
ul li { margin: 0 0 5px 0; }

//Will only select the childer li of the ul
//<ul>
	<li>
		<ul>
			<li></li>
			<li></li>
		</ul>
	</li>
</ul>
Affected li = 1
ul > li { margin: 0 0 5px 0; }