div#youtube_box
{
	width: 700px;
	height: 394px;
	margin: 20px auto;
}

ul.ss_list
{
	list-style-type: none;
	margin: 0px auto;
	padding: 0px;
	font-size: 0px;
	width: 780px;
}

ul.ss_list li
{
	float: left;
	margin: 5px;
}