/*定位居中*/
.middle {
    position: absolute;
    left: 50%;
    top: 50%;
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}



img, input, button, textarea {
    border: none;
    padding: 0;
    margin: 0;
    outline-style: none;
}


input {
    padding-top: 0;
    padding-bottom: 0;
    font-family: "SimSun", "宋体";
}

/*去掉行内替换元素空白缝隙*/
img {
    border: 0;
    vertical-align: middle;
}


s, i, em, u {
    font-style: normal;
    text-decoration: none;
}

.fl {
    float: left;
}

.fr {
    float: right;
}

/*清除浮动*/
.clearfix:before,
.clearfix:after {
    content: "";
    display: table;
}

.clearfix:after {
    clear: both;
}

.clearfix {
    *zoom: 1;
    /*IE/7/6*/
}