h1, h2, h3, h4, h5, h6, p, dl, dd, dt, ul, ol, li, body {
    margin: 0;
    padding: 0;
}

ul, ol, dl, dd, dt {
    list-style: none;
}

input, button, textarea {
    outline: none;
    font-family: "microsoft yahei";
}

input::-webkit-input-placeholder { /* WebKit browsers */
    color: #fff;
}

input:-moz-placeholder { /* Mozilla Firefox 4 to 18 */
    color: #fff;
}

input::-moz-placeholder { /* Mozilla Firefox 19+ */
    color: #fff;
}

input:-ms-input-placeholder { /* Internet Explorer 10+ */
    color: #fff;
}

a {
    color: #000;
    text-decoration: none;
}

img {
    border: 0;
    vertical-align: middle;
}

h1, h2, h3, h4, h5, h6 {
    font-size: inherit;
    font-weight: normal;
}

.lf {
    float: left;
}

.rt {
    float: right;
}

.content {
    width: 1200px;
    margin: 0 auto;
    box-sizing: border-box;
}

.cl:after, .content:after {
    content: " ";
    display: block;
    clear: both;
}

.show_top,
.show_bottom,
.show_left,
.show_right {
    opacity: 0;
    animation-name: none;
}

.show_top.animate {
    animation: showtop 1s ease forwards;
    -webkit-animation: showtop 1s ease forwards;
}

.show_bottom.animate {
    animation: showbottom 1s ease forwards;
    -webkit-animation: showbottom 1s ease forwards;
}

.show_left.animate {
    animation: showleft 1s ease forwards;
    -webkit-animation: showleft 1s ease forwards;
}

.show_right.animate {
    animation: showright 1s ease forwards;
    -webkit-animation: showright 1s ease forwards;
}

@keyframes showtop {
    0% {
        transform: translatey(-50px);
        opacity: 0;
    }
    100% {
        transform: translatey(0);
        opacity: 1;
    }
}

@-webkit-keyframes showtop {
    0% {
        transform: translatey(-50px);
        opacity: 0;
    }
    100% {
        transform: translatey(0);
        opacity: 1;
    }
}

@keyframes showbottom {
    0% {
        transform: translatey(50px);
        opacity: 0;
    }
    100% {
        transform: translatey(0);
        opacity: 1;
    }
}

@-webkit-keyframes showbottom {
    0% {
        transform: translatey(50px);
        opacity: 0;
    }
    100% {
        transform: translatey(0);
        opacity: 1;
    }
}

@keyframes showright {
    0% {
        transform: translatex(50px);
        opacity: 0;
    }
    100% {
        transform: translatey(0);
        opacity: 1;
    }
}

@-webkit-keyframes showright {
    0% {
        transform: translatex(50px);
        opacity: 0;
    }
    100% {
        transform: translatey(0);
        opacity: 1;
    }
}

@keyframes showleft {
    0% {
        transform: translatex(-50px);
        opacity: 0;
    }
    100% {
        transform: translatey(0);
        opacity: 1;
    }
}

@-webkit-keyframes showleft {
    0% {
        transform: translatex(-50px);
        opacity: 0;
    }
    100% {
        transform: translatey(0);
        opacity: 1;
    }
}