.step-proof {
    -webkit-transition: font 1s ease;
    -moz-transition: font 1s ease;
    transition: font 1s ease;
}

span.p-active {
    /* -webkit-transform: scale(1.2); */
    /* -moz-transform: scale(1.2); */
    /* transform: scale(1.2); */
    /* display: block; */
    font-weight: 200%;
    color: #aa3f3f;
}