html,
body {
	width: 100%;
	height: 100%;
}

body {
	background-image: url(https://images.unsplash.com/photo-1496715976403-7e36dc43f17b?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=2340&q=80);
}

canvas {
	display: block;
	vertical-align: bottom;
}

.count-particles {
	background: #000022;
	position: absolute;
	top: 48px;
	left: 0;
	width: 80px;
	color: #13E8E9;
	font-size: .8em;
	text-align: left;
	text-indent: 4px;
	line-height: 14px;
	padding-bottom: 2px;
	font-family: Helvetica, Arial, sans-serif;
	font-weight: bold;
}

.js-count-particles {
	font-size: 1.1em;
}

#stats,
.count-particles {
	-webkit-user-select: none;
	margin-top: 5px;
	margin-left: 5px;
}

#stats {
	border-radius: 3px 3px 0 0;
	overflow: hidden;
}

.count-particles {
	border-radius: 0 0 3px 3px;
}


#particles-js {
	width: 100%;
	height: 100%;
	position: relative;
	background-color: hsla(0, 0%, 0%, 0.7);
	background-position: 50% 50%;
	background-size: cover;
	background-repeat: no-repeat;
	margin-left: auto;
	margin-right: auto;
}

#particles-js img {}

.sk-rotating-plane {
	display: none;
	width: 80px;
	height: 80px;
	margin: auto;
	background-color: white;
	-webkit-animation: sk-rotating-plane 1.2s infinite ease-in-out;
	animation: sk-rotating-plane 1.2s infinite ease-in-out;
	z-index: 1;
	position: absolute;
	top: 50%;
	left: 50%;
	margin-left: -40px;
	margin-top: -80px;
}

.sk-rotating-plane.active {
	display: block;
}

@keyframes sk-rotating-plane {
	0% {
		-webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg);
		transform: perspective(120px) rotateX(0deg) rotateY(0deg);
	}

	50% {
		-webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
		transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
	}

	100% {
		-webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
		transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
	}
}

@keyframes login-small {
	0% {
		transform: scale(1);
		-moz-transform: scale(1);
		/* Firefox 4 */
		-webkit-transform: scale(1);
		/* Safari 和 Chrome */
		-o-transform: scale(1);
		/* Opera */
		-ms-transform: scale(1);
		/* IE 9 */
	}

	100% {
		transform: scale(0.2);
		-moz-transform: scale(0.1);
		/* Firefox 4 */
		-webkit-transform: scale(0.2);
		/* Safari 和 Chrome */
		-o-transform: scale(0.1);
		/* Opera */
		-ms-transform: scale(0.1);
		/* IE 9 */
	}
}

.login {
	z-index: 2;
	position: absolute;
	width: 350px;
	border-radius: 5px;
	height: 400px;
	background: white;
	box-shadow: 0px 0px 5px #333333;
	top: 50%;
	left: 50%;
	margin-top: -250px;
	margin-left: -175px;
	transition: all 1s;
	-moz-transition: all 1s;
	/* Firefox 4 */
	-webkit-transition: all 1s;
	/* Safari 和 Chrome */
	-o-transition: all 1s;
	/* Opera */
}

.login-top {
	font-size: 24px;
	margin-top: 70px;
	padding-left: 40px;
	box-sizing: border-box;
	color: #333333;
	margin-bottom: 50px;
}

.login-center {
	width: 100%;
	box-sizing: border-box;
	padding: 0 40px;
	margin-bottom: 30px;
}

.login-center-img {
	width: 20px;
	height: 20px;
	float: left;
	margin-top: 5px;
}

.login-center-img>img {
	width: 100%;
}

.login-center-input {
	float: left;
	width: 230px;
	margin-left: 15px;
	height: 30px;
	position: relative;
}

.login-center-input input {
	z-index: 2;
	transition: all 0.5s;
	padding-left: 10px;
	color: #333333;
	width: 100%;
	height: 30px;
	border: 0;
	border-bottom: 1px solid #cccccc;
	border-top: 1px solid #ffffff;
	border-left: 1px solid #ffffff;
	border-right: 1px solid #ffffff;
	box-sizing: border-box;
	outline: none;
	position: relative;
}

.login-center-input input:focus {
	border: 1px solid dodgerblue;
}

.login-center-input-text {
	background: white;
	padding: 0 5px;
	position: absolute;
	z-index: 0;
	opacity: 0;
	height: 20px;
	top: 50%;
	margin-top: -10px;
	font-size: 14px;
	left: 5px;
	color: dodgerblue;
	line-height: 20px;
	transition: all 0.5s;
	-moz-transition: all 0.5s;
	/* Firefox 4 */
	-webkit-transition: all 0.5s;
	/* Safari 和 Chrome */
	-o-transition: all 0.5s;
	/* Opera */
}

.login-center-input input:focus~.login-center-input-text {
	top: 0;
	z-index: 3;
	opacity: 1;
	margin-top: -15px;
}

.login.active {
	-webkit-animation: login-small 0.8s;
	animation: login-small 0.8s;
	animation-fill-mode: forwards;
	-webkit-animation-fill-mode: forwards
}

.login-button {
	cursor: pointer;
	width: 250px;
	text-align: center;
	height: 40px;
	line-height: 40px;
	background-color: dodgerblue;
	border-radius: 5px;
	margin: 0 auto;
	margin-top: 50px;
	color: white;
	font-size: 18px;
	letter-spacing: 2px;
}

.login-button:hover {
	font-weight: 700;
	letter-spacing: 5px;
}