html, body{margin: 0; padding: 0; }

body {overflow-x: hidden; position: relative; min-height: 100vh; background-image: url("img/fond_solo.webp"); background-size: cover; background-position: top center; }
body::before {content: ""; position: fixed; inset: 0; background: rgba(0, 0, 0, 0.5); z-index: 0; }
body > * {position: relative; z-index: 1; }

div.containerLogo{position: absolute; top: 50%; left: 50%; max-width: 100%; transform: translate(-50%, -50%);}
div.logo{max-width: 80vw; width: 900px; height: 550px; background-image: url(img/logo.svg); background-position: center center; background-size: contain; background-repeat: no-repeat;}
.message{text-align: center; color: #fff; font-size: 22px; font-family: Roboto, Verdana, sans-serif;}