@media screen and (max-width: 980px) {
    .t654.t654__positionabsolute, .t654.t654__positionfixed, .t654.t654__positionstatic {
        position: fixed;
    }
}

@media screen and (max-width: 640px) {
    .t-form__successbox {
        font-size: 18px;
    }
}