transition + bruit de pas dans couloir

CSS/couloir.css

@@ -9,6 +9,10 @@ body {
     height: 95vh;
 }
 
+    @keyframes fondu {
+        100% {opacity : 0;}
+    }
+
     header {
         color: #BF0909;
         font-family: 'Special Elite', cursive;

JAVASCRIPT/couloir.js

@@ -4,12 +4,14 @@ let body = document.getElementById("body");
 
 // -------------- FUNCTIONS -------------//
 function handleLienCryptoClicked() {
+    lienCrypto.removeEventListener("click", handleLienCryptoClicked);
     let audioPas = document.createElement("audio");
     audioPas.setAttribute("preload", "auto");
     audioPas.setAttribute("autoplay", true);
     audioPas.setAttribute("src", "../Sounds/pas_insaide.mp3");
     audioPas.style.cssText = "z-index: -1; opacity: 0;";
     body.appendChild(audioPas);    
+    body.style.cssText = "animation : fondu 5s forwards"
 
     setTimeout(() => {
         lienCrypto.setAttribute("href", "./crypto_seul.html");