/* ------------------------------------------
 * IT书包
 * 网址：www.itshubao.com
 * 整理：yinq<3331653644@qq.com> 
 -------------------------------------------- */
html, body {
    margin: 0;
    padding:0;
    height: 100%;
    color: #fff;
    font: 11px/normal sans-serif;
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
}
#mask {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
}
h1 { 
  margin: 0 10px; 
  font-size: 70px; 
  font-weight: bold;
  text-shadow: 0 0 2px #fff;
}
.clearfix {
    clear: both;
}
#page {
    margin: 0 auto;
    width: 600px;
}
#container {
    opacity: .9;
}
#usage li {
    position: relative;
    margin: 5px 0;
    padding: 10px;
    color: #222;
    background: #fff;
}
#usage code {
    position: absolute;
    top:0;
    right:0;
    padding: 10px;
    color: #eee;
    border: 1px solid #333;
    background: #000;
}

/*
 * flipclock
 * Version: 1.0.0 
 * Authors: @gokercebeci
 * Licensed under the MIT license
 * Demo: http://
*/

/*==============================================================================
    FLIP CLOCK
==============================================================================*/
.flipclock {
}
.flipclock hr {
    position: absolute;
    left: 0;
    top: 65px;
    width: 100%;
    height: 3px;
    border: 0;
    background: #000;
    z-index: 10;
    opacity: 0;
}
ul.flip {
    position: relative;
    float: left;
    margin: 10px;
    padding: 0;
    width: 180px;
    height: 130px;
    font-size: 120px;
    font-weight: bold;
    line-height: 127px;
}

ul.flip li {
    float: left;
    margin: 0;
    padding: 0;
    width: 49%;
    height: 100%;
    -webkit-perspective: 200px;
    list-style: none;
}

ul.flip li.d1 {
    float: right;
}

ul.flip li section {
    z-index: 1;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;

}

ul.flip li section:first-child {
    z-index: 2;
}

ul.flip li div {
    z-index: 1;
    position: absolute;
    left: 0;
    width: 100%;
    height: 49%;
    overflow: hidden;
}

ul.flip li div .shadow {
    display: block;
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 2;
}

ul.flip li div.up {
    -webkit-transform-origin: 50% 100%;
    top: 0;
}

ul.flip li div.down {
    -webkit-transform-origin: 50% 0%;
    bottom: 0;
}

ul.flip li div div.inn {
    position: absolute;
    left: 0;
    z-index: 1;
    width: 100%;
    height: 200%;
    color: #fff;
    text-shadow: 0 0 2px #fff;
    text-align: center;
    background-color: #000;
    border-radius: 6px;
}

ul.flip li div.up div.inn {
    top: 0;

}

ul.flip li div.down div.inn {
    bottom: 0;
}

/*--------------------------------------
 PLAY
--------------------------------------*/

body.play ul section.ready {
    z-index: 3;
}

body.play ul section.active {
    -webkit-animation: index .5s .5s linear both;
    z-index: 2;
}

@-webkit-keyframes index {
    0% {
        z-index: 2;
    }
    5% {
        z-index: 4;
    }
    100% {
        z-index: 4;
    }
}

body.play ul section.active .down {
    z-index: 2;
    -webkit-animation: flipdown .5s .5s linear both;
}

@-webkit-keyframes flipdown {
    0% {
        -webkit-transform: rotateX(90deg);
    }  
    80% {
        -webkit-transform: rotateX(5deg);
    } 
    90% {
        -webkit-transform: rotateX(15deg);
    }
    100% {
        -webkit-transform: rotateX(0deg);
    }
}

body.play ul section.ready .up {
    z-index: 2;
    -webkit-animation: flipup .5s linear both;
}

@-webkit-keyframes flipup {
    0% {
        -webkit-transform: rotateX(0deg);
    }  
    90% {
        -webkit-transform: rotateX(0deg);
    }
    100% {
        -webkit-transform: rotateX(-90deg);
    }
}

/*--------------------------------------
 SHADOW
--------------------------------------*/

body.play ul section.ready .up .shadow {
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, rgba(0, 0, 0, .1)), color-stop(100%, rgba(0, 0, 0, 1)));
    background: linear-gradient(top, rgba(0, 0, 0, .1) 0%, rgba(0, 0, 0, 1) 100%);
    background: linear-gradient(to bottom, rgba(0, 0, 0, .1) 0%, rgba(0, 0, 0, 1) 100%);
    -webkit-animation: show .5s linear both;
}

body.play ul section.active .up .shadow {
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, rgba(0, 0, 0, .1)), color-stop(100%, rgba(0, 0, 0, 1)));
    background: linear-gradient(top, rgba(0, 0, 0, .1) 0%, rgba(0, 0, 0, 1) 100%);
    background: linear-gradient(to bottom, rgba(0, 0, 0, .1) 0%, rgba(0, 0, 0, 1) 100%);
    -webkit-animation: hide .5s .3s linear both;
}

/*DOWN*/

body.play ul section.ready .down .shadow {
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, rgba(0, 0, 0, 1)), color-stop(100%, rgba(0, 0, 0, .1)));
    background: linear-gradient(top, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, .1) 100%);
    background: linear-gradient(to bottom, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, .1) 100%);
    -webkit-animation: show .5s linear both;
}

body.play ul section.active .down .shadow {
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, rgba(0, 0, 0, 1)), color-stop(100%, rgba(0, 0, 0, .1)));
    background: linear-gradient(top, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, .1) 100%);
    background: linear-gradient(to bottom, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, .1) 100%);
    -webkit-animation: hide .5s .3s linear both;
}

@-webkit-keyframes show {
    0% {
        opacity: 0;
    }
    90% {
        opacity: .10;
    }
    100% {
        opacity: 1;
    }
}

@-webkit-keyframes hide {
    0% {
        opacity: 1;
    }  
    80% {
        opacity: .20;
    }
    100% {
        opacity: 0;
    }
}