JSFiddle - React, Tailwind, and code Playground

HTML

<div class="form-group" id="password">
<input type="password" class="form-control" placeholder="Password" name="password">
</div>
<div class="form-group" id="repassword">
<input type="password" class="form-control" placeholder="Confirm Password" name="repassword">
</div>

CSS

.has-success {
    background:green;
}
.has-error {
    background:red;
}

JavaScript

$('input').blur(function() {
    var pass = $('input[name=password]').val();
    var repass = $('input[name=repassword]').val();
    if(($('input[name=password]').val().length == 0) || ($('input[name=repassword]').val().length == 0)){
        $('#password').addClass('has-error');
    }
    else if (pass != repass) {
        $('#password').addClass('has-error');
        $('#repassword').addClass('has-error');
    }
    else {
        $('#password').removeClass().addClass('has-success');
        $('#repassword').removeClass().addClass('has-success');
    }
});