.conteneur_categories {
    display: flex;
    width: 80%
}

.contenu_categories {
    width: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-left: 5%;
    margin-top: 5%;align-self: baseline;
}

.contenu_categories img {
    width: 20%;
    margin-bottom: 3%;
}