.has-success .input-group-btn .btn.btn-default {
    color: #3c763d;
    border-color: #3c763d;
}
.has-warning .input-group-btn .btn.btn-default {
    color: #8a6d3b;
    border-color: #8a6d3b;
}
.has-error .input-group-btn .btn.btn-default {
    color: #a94442;
    border-color: #a94442;
}

span#g-recaptcha-response-error{
	display:none !important;
}