.table-of-contents.open {
  color: #000000;
  background-color: #e5f6fc;
  border-radius: 15px;
}

img {
  border-radius: 10px;
}

h1 {
  text-align: center;
  color: #f1ff29;
}

h2 {
  color: #ff9d00;
}



h3 {
  color: #ffd99c;
}