img {
    width: 90%;
    margin-left: 5%;
    margin-top: 10px;
}
.user {
    text-align: center;
}
.user a {
    color: #666;
    font-size: 16px;
}
.tishi {
    position: fixed;
    text-align: center;
    color: #666;
    font-size: 14px;
    bottom: 20px;
    width: 100%;
}
.tishis {
    position: fixed;
    text-align: center;
    color: #666;
    font-size: 14px;
    bottom: 42px;
    width: 100%;
}
.imgs{
    position: fixed;
    bottom: 70px;
    
}