.ConteneurFlex{
    min-height: 85%;
    display: flex;
    flex-direction: column;
}

.Actualites{
    width: 65%; 
    margin: 0 auto 0 auto;  
    padding-top: 25px;
    display: flex;
    flex-direction: row;
}    
    .Actualites h3:first-child{
        min-width: 150px;
    }
    .Actualites h3{
        color:rgb(75, 75, 75);
    }
    .Actualites p{
        margin-top: 10px;
        font-size: 1.3em;
        line-height: 1.4em;
        color:rgb(100, 100, 100);
    }
   
/* Responsive Design */
@media (max-width: 1300px) {  
    .Actualites{
        width: 90%;
        flex-direction: column;
    }  
        .Actualites p{        
            font-size: 1.2em;
        }
}