body {
    font-family: Microsoft YaHei,'宋体', Tahoma, Helvetica, Arial, "\5b8b\4f53", sans-serif;
}
.paper_box {
    font-size: 18px;
    padding: 30px;
    /*width: 800px;*/
    min-height: 250px;
    margin: 20px auto;
    background-color: #fff;
    border: 1px solid #eee;
    -webkit-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.27), 0 0 60px rgba(0, 0, 0, 0.06) inset;
    -moz-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.27), 0 0 40px rgba(0, 0, 0, 0.06) inset;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.27), 0 0 40px rgba(0, 0, 0, 0.06) inset;
    position: relative;
    *zoom: 1;
}

.paper_box:before {
    -webkit-transform: skew(-15deg) rotate(-6deg);
    -moz-transform: skew(-15deg) rotate(-6deg);
    transform: skew(-15deg) rotate(-6deg);
    left: 15px;
}

.paper_box:after {
    -webkit-transform: skew(15deg) rotate(6deg);
    -moz-transform: skew(15deg) rotate(6deg);
    transform: skew(15deg) rotate(6deg);
    right: 15px;
}

.paper_box:before, .paper_box:after {
    width: 100px;
    height: 100px;
    content: ' ';
    -webkit-box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
    -moz-box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
    position: absolute;
    bottom: 10px;
    z-index: -1;
}

.typed-cursor {
    opacity: 1;
    font-weight: 500;
    -webkit-animation: blink 0.7s infinite;
    -moz-animation: blink 0.7s infinite;
    -ms-animation: blink 0.7s infinite;
    -o-animation: blink 0.7s infinite;
    animation: blink 0.7s infinite;
}

@keyframes blink {
0% {
    opacity: 1;
}

50% {
    opacity: 0;
}

100% {
    opacity: 1;
}
}

@-webkit-keyframes blink {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@-moz-keyframes blink {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@-ms-keyframes blink {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@-o-keyframes blink {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}