.contenedor-imagenes {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative; 
  margin: 0 auto;
}


.imagen-construccion {
  width: 40%;
  height: auto;
  display: block;
  margin: 0;
  max-width: 100%; 
  position: absolute;
  top: 30px;
}


.texto {
  text-align: center;
  font-size: 2em;
  font-family:Arial, Helvetica, sans-serif;
  position: relative;
  top: 100px;
}