.bouton-estimation{position:fixed;bottom:20px;right:20px;background-color:#03f;color:#fff;padding:15px 25px;border-radius:25px;font-weight:700;font-family:sans-serif;text-decoration:none;box-shadow:0 4px 10px rgb(0 0 0 / .3);z-index:9999;transition:transform 0.2s ease}.bouton-estimation:hover{transform:scale(1.05)}