.cf {
    width: 100%;
    margin-top: 40px;
    padding: 20px;
    border: 1px solid silver;
}

.cf_required {
    color: red;
}

.cf_info {
    font-size: 80%;
    padding-top: 10px;
}

@media screen and (max-height: 575px){
#rc-imageselect, .g-recaptcha {transform:scale(0.65);-webkit-transform:scale(0.65);transform-origin:0 0;-webkit-transform-origin:0 0;}
    
    .cf {
    border: none;
    padding: 0px;
}
}