@import url("https://fonts.googleapis.com/css?family=Poppins");
body #estimation_popup.wpe_bootstraped[data-form="257"] #btnStart {
   font-family: Poppins;
    font-size: 20px;
    padding: 20px 60px;
}
body #estimation_popup.wpe_bootstraped[data-form="257"] #startInfos>P:nth-child(2) {
   font-size: 21px;
}