html, body {
  height:100%;
  margin:0;
}

body {
	background-color: #000;
	font-size: 2rem;
	color: #fff;
}

h1 {
	color: red;
	font-size: 3rem;
}

hr {
	border-width: 1px;
	border-color: red;
}
#side {
	padding: 40px;
	font-size: 1.5rem;
}

#side p {
	text-align: center!important;
}

#chosen img {
	max-width: 150px;
}

.card-container {
	background-color: #000;
}

.col-12 {
	margin-bottom: 7px;
}

.card, .back {
  transition: opacity 0.5s ease-in-out;
}

.hidden {
	display: none;
}

button {
	min-width: 100px;
	margin: 50px 0 0 20px;
}