.data-field span.validation-error-message,
.data-field span.required-message {display:none;}
.data-field.error-required span.required-message {display:block;margin:0px 20px;color:red;}
.data-field.error-data span.validation-error-message {display:block;margin:0px 20px;color:red;}

@media (max-width: 768px) {
    body .mainContainer { margin:0px; }
}