.inp {
    border: 1px solid gray;
    padding: 0 10px;
    width: 200px;
    height: 30px;
    font-size: 18px;
}
.btn {
    border: 1px solid gray;
    width: 100px;
    height: 30px;
    font-size: 18px;
    cursor: pointer;
}
#embed-captcha {
    width: 330px;
    margin: 0 auto;
}
.show {
    display: block;
}
.hide {
    display: none;
}
#notice {
    color: red;
}