html, body {
    margin: 0;
    height: 100%;
	width: 100%;
	background: black;
	position: absolute;
	resize: vertical;
}

h1 {
	margin:0;
}

button.opts{
	margin: 0 auto;
	width: 220px;
	height: 40px;
	font-size: 24px;
	background-color:rgb(15,27,36);
	color: white;
	border: none;
	display: block;
	border-radius: 8px;
	cursor: pointer;
}

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

button.opts:hover{
  -o-transition:.5s;
  -ms-transition:.5s;
  -moz-transition:.5s;
  -webkit-transition:.5s;
  transition:.5s;
  box-shadow: 10px 10px 5px #888888;
}