* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

main {
  background-image: url('../img/fondo.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  height: 100vh;
  width: 100vw;
  padding: 10vh;
}

img {
  border-radius: 160px;
}

.caja1 {
  background-color: black; 
  border-radius: 16px;
  cursor: pointer;
}

h1 {
  font-family: serif;
  cursor: default;

}