.cnt_detail {
    color:#333;
    letter-spacing: 0;
    text-align: justify;
    line-height: 34px;
    font-size:16px;
    font-family:MicrosoftYaHei;
    font-weight:400;
    text-indent: 2em;
    margin:0;
}
.footer {
    position: absolute;
    bottom: 0;
}