.contenuPage
{
    box-sizing: border-box;
}
.infospage
{
    text-align: center;
    margin: 8%;
}
.infospage h1
{
    font-weight: bold;
    font-size: 2em;
    text-decoration: underline;
}
.manif img
{
    width: 45%;
}
@media only screen and (max-width: 740px)
{
    .infospage
    {
        margin: 4%;  
    }
}
@media only screen and (max-width: 600px)
{
    .infospage
    {
        margin: 0%;  
    }
}