*{margin: 0;padding:0;}
        body {margin: 0; padding: 20px 100px;background-color: #f4f4f4;}
        pre{max-height:200px;overflow:auto;}
        div.demo {overflow:auto;}
        .box {
            width: 300px;
            min-height: 300px;
            margin: 30px;
            display: inline-block;
            background: #fff;
            border: 1px solid #ccc;
            position:relative;
        }
        .box p {
            margin: 30px;
            color: #aaa;
            outline: none;
        }
        /*=========Box1===========*/
        .box1{            
            background: -webkit-gradient(linear, 0% 20%, 0% 100%, from(#fff), to(#fff), color-stop(.1,#f3f3f3));
            background: -webkit-linear-gradient(0% 0%, #fff, #f3f3f3 10%, #fff);
            background: -moz-linear-gradient(0% 0%, #fff, #f3f3f3 10%, #fff);
            background: -o-linear-gradient(0% 0%, #fff, #f3f3f3 10%, #fff);
            /*设置Box的阴影效果*/
            -webkit-box-shadow: 0px 3px 30px rgba(0, 0, 0, 0.1) inset;
            -moz-box-shadow: 0px 3px 30px rgba(0, 0, 0, 0.1) inset;
            box-shadow: 0px 3px 30px rgba(0, 0, 0, 0.1) inset;
            /*制作右下脚折边效果*/
            -moz-border-radius: 0 0 6px 0 / 0 0 50px 0;
            -webkit-border-radius: 0 0 6px 0 / 0 0 50px 0;
            border-radius: 0 0 6px 0 / 0 0 50px 0;
        }
        /*使用:before来制作底部阴影，并对阴影进行旋转的扭曲和位移设置*/
        .box1:before{
            content: '';
            width: 50px;
            height: 100px;
            position:absolute;
            bottom:0; right:0;
            -webkit-box-shadow: 20px 20px 10px rgba(0, 0, 0, 0.1);
            -moz-box-shadow: 20px 20px 15px rgba(0, 0, 0, 0.1);
            box-shadow: 20px 20px 15px rgba(0, 0, 0, 0.1);
            z-index:-1;
            -webkit-transform: translate(-35px,-40px)    skew(0deg,30deg) rotate(-25deg);
            -moz-transform: translate(-35px,-40px) skew(0deg,32deg)    rotate(-25deg);
            -o-transform: translate(-35px,-40px) skew(0deg,32deg)    rotate(-25deg);    
                transform: translate(-35px,-40px) skew(0deg,32deg)    rotate(-25deg);    
        }
        /*使用:after来制作顶部的阴影，并对阴影进行旋转的扭曲和位移设置*/
        .box1:after{
            content: '';
            width: 100px;
            height: 100px;
            top:0; left:0;
            position:absolute;
            display: inline-block;
            z-index:-1;
            -webkit-box-shadow: -10px -10px 10px rgba(0, 0, 0, 0.2);
            -moz-box-shadow: -10px -10px 15px rgba(0, 0, 0, 0.2);
            box-shadow: -10px -10px 15px rgba(0, 0, 0, 0.2);
            -webkit-transform: rotate(2deg)    translate(20px,25px) skew(20deg);
            -moz-transform: rotate(7deg) translate(20px,25px) skew(20deg);
            -o-transform: rotate(7deg) translate(20px,25px) skew(20deg);    
                transform: rotate(7deg) translate(20px,25px) skew(20deg);                
        }
        
        /*==========Box2============*/
        .box2{
            padding: 0 0 1px 0;
            background: #f3f3f3;
            background: -webkit-gradient(linear, 0% 20%, 0% 92%, from(#f3f3f3), to(#fff), color-stop(.1,#f3f3f3));
            background: -webkit-linear-gradient(0 0 270deg, #f3f3f3, #f3f3f3 10%, #fff);
            background: -moz-linear-gradient(0 0 270deg, #f3f3f3, #f3f3f3 10%, #fff);
            background: -o-linear-gradient(0 0 270deg, #f3f3f3, #f3f3f3 10%, #fff);
            border-top: 1px solid #ccc;
            border-right: 1px solid #ccc;
            -webkit-border-radius: 0 0 60px 0 / 0 0 60px 0;
            -moz-border-radius: 0 0 60px 0 / 0 0 60px 0;
            border-radius: 0 0 60px 0 / 0 0 60px 0;
            -webkit-box-shadow: -1px 2px 2px rgba(0, 0, 0, 0.2);