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

#particles-js {
    width: 100%;
    height: 100%;
    position: relative;
    background-image: url(../image/background.jpg);
    background-position: 50% 50%;
    background-size: cover;
    background-repeat: no-repeat;
    margin-left: auto;
    margin-right: auto;
}

#boxhdp{ width: 600px; height: 300px;margin: 0 auto; margin-top: 30px; overflow: hidden; position: relative;}
#img>li{ width: 100%; height: 100%; float: left; text-align: center; display: none;}
#img>.current{display: block;}
#li{position: absolute;
    left: 50%;
    bottom: 15px;
    margin-left: -35px;}
#li>li{ width: 10px;height: 10px; background-color: #ccc; border-radius: 50%; margin-right: 5px; float: left; cursor: pointer;}
#li>.on{ background-color: #f50;}
#an{ display: none;}
#an a{
	position: absolute;
	top: 50%;
	margin-top: -20px;
	width: 40px;
	height: 40px;
	background-color: rgba(0,0,0,.3);
	text-align: center;
	line-height: 40px;
	color: #fff;
	font-family: "宋体";
	font-weight: 600;
	font-size: 1.2em;
}
#an a:hover{
	background-color: rgba(0,0,0,.8);
}
#an .an-a2{ right: 0;}
.login {
    z-index: 2;
    position: absolute;
    width: 350px;
    border-radius: 5px;
    height: 500px;
    background: white;
    box-shadow: 0px 0px 5px #333333;
    opacity: 0.7;
    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;
    box-sizing: border-box;
    height: 180px;
    width: 180px;
    color: #333333;
    background-image: url(../image/logo.jpg);
    background-position: 50% 50%;
    background-size: contain;
    background-repeat: no-repeat;
    margin: 35px auto 40px;
}

.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 rgb(36, 117, 209);
}

.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: 20px;
    color: white;
}

@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 */
    }
}

.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;
}