.contenedor{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}

.item-titulo{
    text-align: center;    
}

.item-foto{
    width: 300px;
    height: 300px;
    border-radius: 20px;
    box-shadow: rgb(150,150,150) 5px 5px 10px;
}