.avis_cookie {
    position: fixed;
    display: flex;
    justify-content: center;
    align-items: center;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    z-index: 10;
    background: rgba(0,0,0,0.5) !important;
}

.avis_cookie > .container {
    width: 100%;
    background: white;
    padding: 20px;
    border: 2px solid rgba(0,0,0,0.6);
    border-radius: 10px;
    margin: 10px 10%;
}