style.css

/**
 * @license
 * Copyright 2018 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * =============================================================================
 */

/* CSS files add styling rules to your content */

body {
	font-family: helvetica, arial, sans-serif;
	margin: 2em;
}

h1 {
	font-style: italic;
	color: purple;
}

video {
	clear: both;
	display: block;
	margin: 10px;
	background: #000000;
	width: 640px;
	height: 480px;
}

button {
	padding: 10px;
	float: left;
	margin: 5px 3px 5px 10px;
}

ol {
	clear: both;
	margin-top: 90px;
}

.removed {
	display: none;
}

#status {
	font-size: 150%;
}