img {
    height: 50px;
    border-radius: 20%;
}
section { /*zone actus*/
    background-color: #CABCE4;
    width: 90%;
    text-align: center;
    margin: 0 auto ;
    border-radius: 20px;
}
summary{
    text-align: center;
}
details{ 
    background-color: #BFD8BC80; 
    border-radius: 20px;
}
h1{
    margin-top: 0;
    margin-bottom: 0;
}