html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: black;
    color: white;
  }
  
  main {
    text-align: center;
  }  
  
.tile {
    border: thick double white;
    border-radius: 30% 70% 70% 30% / 30% 58% 42% 70%;
    background-color: black;
    margin: 20px 20px 20px 20px;
    padding: 30px 30px 30px 30px;
    width: 100%;
    max-width: 200px;
    height: auto;
    box-sizing: border-box;
  }
  
.image {
    width: 100%;
    height: auto;
  }
  
.tile:hover {
    background-color: dimgray;
    box-shadow: 6px 6px 0px dimgray;
  }
  
.tile text {
    opacity: 0%;
    text-align: center;
    top: 50%;
    left: 50%;
  }
  
.tile text:hover {
    opacity: 100%;
  }
  
  @media screen and (max-width: 768px) {
    .tile {
        max-width: 150px;
    }
}

@media screen and (max-width: 480px) {
    .tile {
        max-width: 100px;
    }
}