diff --git a/services/utilisateurs/echec_auth.php b/services/utilisateurs/echec_auth.php
index af08f3f..9c29f59 100644
--- a/services/utilisateurs/echec_auth.php
+++ b/services/utilisateurs/echec_auth.php
@@ -1,4 +1,258 @@
 <?php
-echo "Échec de l'authentification. Mettre un style CSS d'attente.";
 header ("Refresh: 5;URL=/pages/formulaire_accueil.php?erreur=1");
 ?>
+
+<!DOCTYPE html>
+<html lang="fr">
+	<head>
+	    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
+	    <title>Courtail</title>
+	    <!-- Ajouter le favicon <link rel="icon" href="/fichiers/images/favicon.ico" /> -->
+			<style>
+			/* Base */
+			body {
+			margin: 0;
+			padding: 0;
+			font-family: sans-serif;
+			font-size: 40px;
+			color: #FFF;
+			background-color: #1F527D;
+			text-align: center; }
+
+			.chargements{
+			position: absolute;
+			top:40%;
+			margin: 0 auto;
+			width: 100%;
+			}
+
+			.section {
+			height: 100%;
+			line-height: 100%; }
+
+			.section-2 {
+			}
+
+			.section-3 {
+			background-color: #e74c3c; }
+
+			.section-4 {
+			background-color: #8e44ad; }
+
+			.chargement {
+			width: 50px;
+			height: 50px;
+			display: inline-block;
+			vertical-align: middle;
+			position: relative; }
+
+			/* chargements */
+			.chargement-quart {
+			border-radius: 50px;
+			border: 6px solid rgba(255, 255, 255, 0.4); }
+
+			.chargement-quart:after {
+			content: '';
+			position: absolute;
+			top: -6px;
+			left: -6px;
+			bottom: -6px;
+			right: -6px;
+			border-radius: 50px;
+			border: 6px solid transparent;
+			border-top-color: #FFF;
+			-webkit-animation: spin 1s linear infinite;
+			-moz-animation: spin 1s linear infinite;
+			animation: spin 1s linear infinite; }
+
+			.chargement-double {
+			border-radius: 50px;
+			border: 6px solid transparent;
+			border-top-color: #FFF;
+			border-bottom-color: #FFF;
+			-webkit-animation: spin 1s linear infinite;
+			-moz-animation: spin 1s linear infinite;
+			animation: spin 1s linear infinite; }
+			.chargement-double:after {
+				content: '';
+				position: absolute;
+				top: 5px;
+				left: 5px;
+				bottom: 5px;
+				right: 5px;
+				border-radius: 50px;
+				border: 6px solid transparent;
+				border-top-color: #FFF;
+				border-bottom-color: #FFF;
+				opacity: 0.6;
+				-webkit-animation: spinreverse 2s linear infinite;
+				-moz-animation: spinreverse 2s linear infinite;
+				animation: spinreverse 2s linear infinite; }
+
+			.chargement-cercles {
+			border-radius: 50px;
+			border: 3px solid transparent;
+			border-top-color: #FFF;
+			-webkit-animation: spin 1s linear infinite;
+			-moz-animation: spin 1s linear infinite;
+			animation: spin 1s linear infinite; }
+			.chargement-cercles:before, .chargement-cercles:after {
+				content: '';
+				position: absolute;
+				top: 5px;
+				left: 5px;
+				bottom: 5px;
+				right: 5px;
+				border-radius: 50px;
+				border: 3px solid transparent;
+				border-top-color: #FFF;
+				opacity: 0.8;
+				-webkit-animation: spin 10s linear infinite;
+				-moz-animation: spin 10s linear infinite;
+				animation: spin 10s linear infinite; }
+			.chargement-cercles:before {
+				top: 12px;
+				left: 12px;
+				bottom: 12px;
+				right: 12px;
+				opacity: .5;
+				-webkit-animation: spin 5s linear infinite;
+				-moz-animation: spin 5s linear infinite;
+				animation: spin 5s linear infinite; }
+
+			.chargement-bares:before, .chargement-bares:after,
+			.chargement-bares span {
+			content: '';
+			display: block;
+			position: absolute;
+			left: 0px;
+			top: 0;
+			width: 10px;
+			height: 30px;
+			background-color: #FFF;
+			-webkit-animation: grow 1s linear infinite;
+			-moz-animation: grow 1s linear infinite;
+			animation: grow 1s linear infinite; }
+			.chargement-bares:after {
+			left: 15px;
+			-webkit-animation-delay: -0.66s;
+			-moz-animation-delay: -0.66s;
+			animation-delay: -0.66s; }
+			.chargement-bares span {
+			left: 30px;
+			-webkit-animation-delay: -0.33s;
+			-moz-animation-delay: -0.33s;
+			animation-delay: -0.33s; }
+
+			/* Animations */
+			@-webkit-keyframes spin {
+			from {
+				-webkit-transform: rotate(0deg); }
+
+			to {
+				-webkit-transform: rotate(360deg); } }
+			@-moz-keyframes spin {
+			from {
+				-moz-transform: rotate(0deg); }
+
+			to {
+				-moz-transform: rotate(360deg); } }
+			@keyframes spin {
+			from {
+				-webkit-transform: rotate(0deg);
+				-moz-transform: rotate(0deg);
+				-ms-transform: rotate(0deg);
+				-o-transform: rotate(0deg);
+				transform: rotate(0deg); }
+
+			to {
+				-webkit-transform: rotate(360deg);
+				-moz-transform: rotate(360deg);
+				-ms-transform: rotate(360deg);
+				-o-transform: rotate(360deg);
+				transform: rotate(360deg); } }
+			@-webkit-keyframes spinreverse {
+			from {
+				-webkit-transform: rotate(0deg); }
+
+			to {
+				-webkit-transform: rotate(-360deg); } }
+			@-moz-keyframes spinreverse {
+			from {
+				-moz-transform: rotate(0deg); }
+
+			to {
+				-moz-transform: rotate(-360deg); } }
+			@keyframes spinreverse {
+			from {
+				-webkit-transform: rotate(0deg);
+				-moz-transform: rotate(0deg);
+				-ms-transform: rotate(0deg);
+				-o-transform: rotate(0deg);
+				transform: rotate(0deg); }
+
+			to {
+				-webkit-transform: rotate(-360deg);
+				-moz-transform: rotate(-360deg);
+				-ms-transform: rotate(-360deg);
+				-o-transform: rotate(-360deg);
+				transform: rotate(-360deg); } }
+			@-webkit-keyframes grow {
+			0% {
+				-webkit-transform: scaleY(0);
+				opacity: 0; }
+
+			50% {
+				-webkit-transform: scaleY(1);
+				opacity: 1; }
+
+			100% {
+				-webkit-transform: scaleY(0);
+				opacity: 0; } }
+			@-moz-keyframes grow {
+			0% {
+				-moz-transform: scaleY(0);
+				opacity: 0; }
+
+			50% {
+				-moz-transform: scaleY(1);
+				opacity: 1; }
+
+			100% {
+				-moz-transform: scaleY(0);
+				opacity: 0; } }
+			@keyframes grow {
+			0% {
+				-webkit-transform: scaleY(0);
+				-moz-transform: scaleY(0);
+				-ms-transform: scaleY(0);
+				-o-transform: scaleY(0);
+				transform: scaleY(0);
+				opacity: 0; }
+
+			50% {
+				-webkit-transform: scaleY(1);
+				-moz-transform: scaleY(1);
+				-ms-transform: scaleY(1);
+				-o-transform: scaleY(1);
+				transform: scaleY(1);
+				opacity: 1; }
+
+			100% {
+				-webkit-transform: scaleY(0);
+				-moz-transform: scaleY(0);
+				-ms-transform: scaleY(0);
+				-o-transform: scaleY(0);
+				transform: scaleY(0);
+				opacity: 0; } }
+			</style>
+	</head>
+	<body>
+		<div class="chargements">
+			<section class="section section-2">
+				<span class="chargement chargement-double"></span>
+				Traitement...
+			</section>
+		</div>
+	</body>
+</html>
