.captchaBtn {
    width: 100%;
    height: 48px;
    line-height: 28px;
    font-size: 15px;
    background-image: linear-gradient(to top, #d7d7d7, #f5f4f4);
    border: none;
    border-radius: 5px;
    outline: #b4b4b4 solid 1px;
}
.captchaBtn:active {
    background-image: linear-gradient(to top, #f5f4f4, #d7d7d7);
}

.captchaVerifySuccess {
    width: 100%;
    height: 48px;
    line-height: 45px;
    text-align: center;
    font-weight: bold;
    font-size: 15px;
    color: #3dab24;
    background: #d5ecc9;
    border: none;
    border-radius: 5px;
    outline: #72d33c solid 1px;
}

.hidden{
    visibility: hidden;
}