body {
    text-align: center;
    background-color: #f1f2f3;
    padding: 0 10px;
}

.avatar {
    margin: 50px auto 0;
    max-width: 180px;
}

.avatar img {
    width: 100%;
}

.box {
    margin: 50px auto 0;
    background-color: #ffffff;
    border-radius: 10px;
    padding: 20px;
    max-width: 310px;
    text-align: center;
}

#tip {
    font-size: 1.25rem;
    text-align: center;
    /*padding: 0 0 30px;*/
    margin-bottom: 30px;
}

#captcha {
    width: 298px;
    display: inline-block;
}

#wait {
    display: block;
    height: 42px;
    width: 99%;
    text-align: center;
    border-radius: 2px;
    background-color: #F3F3F3;
}

.loading {
    margin: auto;
    width: 70px;
    height: 20px;
}

.loading-dot {
    float: left;
    width: 8px;
    height: 8px;
    margin: 18px 4px;
    background: #ccc;
    border-radius: 50%;
    opacity: 0;
    box-shadow: 0 0 2px black;
    animation: loadingFade 1s infinite;
}

.loading-dot:nth-child(1) {
    animation-delay: 0s;
}

.loading-dot:nth-child(2) {
    animation-delay: 0.1s;
}

.loading-dot:nth-child(3) {
    animation-delay: 0.2s;
}

.loading-dot:nth-child(4) {
    animation-delay: 0.3s;
}

@-webkit-keyframes loadingFade {
    0% {
        opacity: 0;
    }
    50% {
        opacity: 0.8;
    }
    100% {
        opacity: 0;
    }
}

@-moz-keyframes loadingFade {
    0% {
        opacity: 0;
    }
    50% {
        opacity: 0.8;
    }
    100% {
        opacity: 0;
    }
}

@keyframes loadingFade {
    0% {
        opacity: 0;
    }
    50% {
        opacity: 0.8;
    }
    100% {
        opacity: 0;
    }
}