@charset "utf-8";
*, *::before, *::after {
	box-sizing: border-box;
}

.container {
	width: 1200px;
}

.mx-auto {
	margin-left: auto;
	margin-right: auto;
}

.text-align {
	text-align: center;
}

body {
	margin: 0;
	font-family: Arial, Helvetica, "微軟正黑體", sans-serif;
	background-color: #333;
}

.btn-inner {
	position: relative;
	top: 50vh;
	margin-top: -150px;
}

.btn {
	position: relative;
	display: inline-block;
	margin: 30px;
	width: 240px;
	height: 240px;
	padding-top: 75px;
	color: #fff;
	font-size: 20px;
	line-height: 1;
	letter-spacing: 3px;
	text-align: center;
	text-decoration: none;
	border: solid 20px #333;
	border-radius: 100%;
	text-shadow: -1px -1px #000;
}

.btn span {
	font-size: 12px;
	letter-spacing: normal;
	text-shadow: none;
}

.btn::before, .btn::after {
	content: "";
	z-index: 1;
	position: absolute;
	border-radius: 50%;
	background-color: #fff;
	opacity: .05;
}

.btn::before {
	left: 17%;
	top: 7%;
	width: 51%;
	height: 40%;
}

.btn::after {
	left: 10%;
	bottom: 0%;
	width: 81%;
	height: 70%;
}

.btn-danger {
	background: radial-gradient(#B20000, #490404);
	box-shadow: -5px -10px 20px rgba(0, 0, 0, .8) inset, 0 0 50px #900;
}

.btn-success {
	background: radial-gradient(#28a745, #0c3e17);
	box-shadow: -5px -10px 20px rgba(0, 0, 0, .8) inset, 0 0 50px #080;
}

.btn-peace {
	background: radial-gradient(#0F7EFD, #033F7C);
	box-shadow: -5px -10px 20px rgba(0, 0, 0, .8) inset, 0 0 50px #06f;
}

.btn-danger:hover {
	box-shadow: -5px -10px 20px rgba(0, 0, 0, .8) inset, 0 0 50px #d00;
}

.btn-success:hover {
	box-shadow: -5px -10px 20px rgba(0, 0, 0, .8) inset, 0 0 50px #0b0;
}

.btn-peace:hover {
	box-shadow: -5px -10px 20px rgba(0, 0, 0, .8) inset, 0 0 50px #007eff;
}