style.css

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: #eff9ff;
}

h1 {
  font-family: "Franklin Gothic Medium", "Arial Narrow", Arial, sans-serif;
}

button {
  font-size: xx-large;
  background-color: unset;
  padding: 1rem;
  margin: 10px 20px;
  transition: 100ms ease-in-out;
}

button:hover {
  transform: scale(1.1);
}

.escondido {
  display: none !important;
}

.fotoPrincipalContainer,
img {
  height: 500px;
}

#like:hover,
#contenedorLikePerros {
  background-color: #00ff2a23;
}

.contenedorPerros {
  display: flex;
  flex-wrap: wrap;
  border-radius: 50px;
}

.contenedorPerros img {
  height: 100px;
  padding: 2rem;
  max-width: 70vw;
  border-radius: 50px;
  margin: 10px;
  padding-bottom: 10;
}

#dislike:hover,
#contenedorDisLikePerros {
  background-color: #79000023;
}

#spinner {
  border: 16px solid #f3f3f3f3;
  border-top: 16px solid #3498db;
  border-radius: 50%;
  width: 120px;
  height: 120px;
  margin-top: 100px;
  animation: spin 2s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}