.fixed-bottom-button { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); z-index: 2147483647; } .fixed-bottom-button:hover { background-color: #e65c00; } Active ton Live document.addEventListener("DOMContentLoaded", function() { let button = document.getElementById("redirect-fms"); let raceId = " 141390 "; // À remplacer dynamiquement si nécessaire let redirectUrl = "https://www.followmysport.com/fmsweb/?P=" + raceId; button.addEventListener("click", function() { window.location.href = redirectUrl; }); button.addEventListener("mouseover", function() { button.style.backgroundColor = "#025c49"; }); button.addEventListener("mouseout", function() { button.style.backgroundColor = "#027c61"; }); });