body {
    background-color: #555555;
    color: #ffffff;
}

img {
    max-height: 494px;
}

a {
    color: #ffffff;
    text-decoration: none;
}

.container {
    display: flex;
}

.tableau {
    margin: auto;
}

.center {
    text-align: center;
}

.text {
    margin-left: 10%;
    margin-right: 10%;
    line-height: 150%;
}

.link {
    margin-left: 10%;
    margin-right: 10%;
    padding-left: 2%;
    padding-right: 2%;
    padding-top: 0.5%;
    padding-bottom: 0.5%;
    border: solid white;
    border-width: 1px;
    border-radius: 30px 30px 30px 30px;
}

.link:active {
    padding-left: 2.2%;
    padding-right: 1.8%;
    padding-top: 0.4%;
    padding-bottom: 0.6%;
}

.links {
    margin-top: 3%; 
    margin-bottom: 3%;
}