footer {
    text-align: center;
    padding: 20px 0;
    background-color: #333333;
    color: #ffffff;
}

#signature {
    font-size: 16px;
}

.reseau{
    height: 32px;
    width: 32px;
    border: none;
    padding: 10px;
}

.reseau:hover{
    height: 42px;
    width: 42px;
}