.sm-captcha {
    display: block;
}

.sm-captcha-title {}

.sm-captcha-radio {
    display: none;
}

.sm-captcha-img {
    cursor: pointer;
    display: inline-block;
    border-radius: 5px;
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    padding: 5px;
    background-color: transparent;
    border: 1px solid #fff;
}

.sm-selected {
    background-color: #efefef;
    border: 1px solid #e7e7e7;
}