body {
  background-image: url("cositas/motherboardfondo.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
  overflow: hidden;
}

#sobre {
  width: 500px;
  height: auto;
  position: relative;
  transition: transform 0.2s ease, filter 0.2s ease;
  cursor: pointer;
  z-index: 10;
}

#sobre:hover {
  transform: scale(1.1);
  filter: brightness(90%);
}

#sobre:active {
  transform: scale(0.95);
  filter: brightness(80%);
}

#aviso-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
}

.aviso {
  position: absolute;
  animation: parpadeo 1.5s infinite alternate;
}

@keyframes parpadeo {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0.3;
  }
}