.veille .content {
    display: flex;
    justify-content: center;
}

.veille .content iframe {
    height: 604px;
    width: 70%;
    box-shadow: -6px 6px 7px 0px rgba(0, 0, 0, 0.3),
        5px 5px 7px 0px rgba(0, 0, 0, 0.3);
}