.contenedor{
    position: relative;
    display: inline-block;
    text-align: center;
}

.texto-encima{
    position: absolute;
    top: 10px;
    left: 10px;
}
.centrado{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #ffffff;
}