Unwanted bulletpoints in plugin

I am using the Youtube sidebar plugin.

Its css code (below) causes the video on the sidebar to display with a bullet. I want the bullet removed, and after lots of experimenting, I have been unsuccessful.

I am sure it is caused by the plugin’s CSS. Does anyone know how to remove the UL/LI provided its CSS?

Here:

#youtube-sidebar-widget ul {
	width: 100%;
	list-style-type: none !important;
	float: left;
}

#youtube-sidebar-widget ul li {
	width: 100%;
	float: left;
	margin-bottom: 10px;
}

#youtube-sidebar-widget ul li img {
	margin: 0;
	position: relative;
	float: left;
	z-index: 1;
	max-width: none;
}

#youtube-sidebar-widget ul li div.play_arrow {
	float: left;
	clear: both;
	background: url(https://cdn1.iconfinder.com/data/icons/realistiK-new/64x64/actions/player_play.png) no-repeat center center;
	cursor: pointer;
	margin-left: 0 !important;
	position: relative;
	z-index: 2;
}

#youtube-sidebar-widget ul li a {
	display: block;
	text-align: center;
	clear: both;
}

#ysw-overlay {
	width: 100%;
	height: 100%;
	position: fixed;
	background: #000;
	z-index: 2147483646;
	opacity: .75; /* Standard: FF gt 1.5, Opera, Safari */
	filter: alpha(opacity=75); /* IE lt 8 */
	-ms-filter: "alpha(opacity=75)"; /* IE 8 */
	-khtml-opacity: .75; /* Safari 1.x */
	-moz-opacity: .75; /* FF lt 1.5, Netscape */
}

#ysw-viewer {
	width: 680px;
	height: 430px;
	display: none;
	position: fixed;
	z-index: 2147483647;
	background: #000;
}

#ysw-viewer a {
	width: 660px;
	height: 20px;
	display: block;
	float: left;
	text-align: right;
	color: #ccc;
	text-decoration: none;
	padding-right: 20px;
	line-height: 20px;
}

#ysw-viewer a:hover {
	text-decoration: underline;
}

#ysw-viewer iframe {
	width: 640px;
	height: 390px;
	float: left;
	clear: both;
	margin: 0 20px 20px 20px;
}