.estrella img {
	width: 250px;
  display: block;
  margin-left: auto;
  margin-right: auto;
  max-width: 100%;
  height: auto;
  margin-bottom: 30px;
  margin-top: 20px;
	
}

/*box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);*/