.block_fichier{
    width: 350px;
    vertical-align: top;    /*middle*/
    border: 4px #0e41d4 solid;
    border-radius: 15px;
    margin:20px;
    display: inline-block;
}

h3{
    background-color: #0e41d4;
    color: white;
    margin-top: 0%;
    
}


.cadre{
    display:flex; 
    justify-content: center;
}

a:hover{
    color: purple;
}

a{
    text-decoration: underline;    
}

/*ADAPTATION POUR ECRAN DE TELEPHONE*/
@media screen and (max-device-width: 480px){
    .cadre{
        display: flex;
        flex-direction: column;
        gap:20px;
    }

    .block_fichier{
        margin:auto;
    }

    .cadre{
        margin-bottom: 20px;
    }
}