.img_bottom {
    width: 100%;
    position: fixed;
    bottom: 0;
}

.div_bottom {
    margin-top: 10px;
    text-align: center;
    width: 100%;
    position: relative;
}

.img_logo {
    width: 33px;
    height: 33px;
}

.copyright {
    color: white;
    opacity: 0.7;
    font-size: 12px;
}

.div_error {
    background: #FF5B5B;
    color: white;
    height: 32px;
    line-height: 32px;
    width: 100%;
    padding-left: 20px;
    position: fixed;
    top: 0;
    display: none;
    font-size: 12px;
}