body {
    font-size: 1.8em;
}

p {
    text-align: justify;
}
.centreTexte {
text-align:center;
}

.centreImage {
    display: block;
    margin:auto; 
}

.cadre {
    background-color: #DDD;
    border-radius: 15px;
    padding: 20px;
}

.espace {
    margin-bottom: 30px;
}