aurelia validation display errors

i am using aurelia-validation and i have 2 input field the problem when i display error , error show together , i want if error for input one show on span with class input-one
and i want if error for input tow show on span with class input-tow , i don’t want use bootstrap ,
please help me how do that

i am using aurelia-validation and i have 2 input field the problem when i display error , error show together , i want if error for input one show on span with class input-one
and i want if error for input tow show on span with class input-tow , i don’t want use bootstrap ,
please help me how do that