.main {
    margin: 2rem !important;
}

h1 {
    text-align: center;
    margin-top: 3rem !important;
}

img {
    padding: 1rem !important;
}
.card-body {
    position: relative;
  }
  .copy-btn {
    position: absolute;
    bottom: 10px;
    right: 10px;
  }

  .card-text {
    margin-bottom: 3rem !important;
  }