.js-form-item-state label{position:relative;}
.js-form-item-state label:after {
    content: '';
    vertical-align: super;
    display: inline-block;
    background-image: url(/themes/contrib/bootstrap_barrio/images/required.svg);
    background-repeat: no-repeat;
    background-size: 7px 7px;
    width: 7px;
    height: 7px;
    margin: 0 0.3em;
    position: absolute;
    right: -10px;
    top: 0;
    color: red;
    font-size: 18px;
}