span.btn.btn-info.active {
    background-color: #2a7ba2;
    border-color: #2874a9;
}

label.btn.btn-info.active {
    background-color: #2a7ba2;
    border-color: #2874a9;
}

pippo {
    background-color: #f0f;
    
}
input.ng-invalid {
  border: 1px solid red;
}
input.ng-valid {
  border: 1px solid green;
}

 .jsNascosto{display: none !important;}
 
 div.register input {
     width: 250px;
 }