.ad-left {
    clear: left;
}

.ad-right {
    clear: right;
}

#ad {
    clear: both;
}

.br {
    clear: both;
}

@media (min-width: 300px) {
    .min-hide {
        visibility: hidden;
    }
}

.red-tip {
    color: red;
}

a {
}

    a:hover {
        text-decoration: none;
    }

.white-space {
    white-space: nowrap;
}

.bg-light-20 {
    height: 20px;
    background-color: #f1f1f1;
}

.bg-red {
    background-color: #f1f1f1;
}

.login-logo-img {
    max-width: 100%;
}