.login h1 a {
    background-image: url(https://www.iontics.com/wp-content/uploads/2018/11/logo-negativo1.svg);
    background-image: none,url(https://www.iontics.com/wp-content/uploads/2018/11/logo-negativo1.svg);
    width:auto;
        background-size: 223px;
    }