header {
    text-align: center;
    margin-top: 80px;
  }

  h1 {
    font-size: 32px;
    margin-bottom: 10px;
  }

  .section {
    text-align: center;
    margin-top: 50px;
  }

  .toggle-btn {
    cursor: pointer;
    background-color: transparent;
    border: none;
    font-size: 20px;
    color: #ffcc00;
    transition: transform 0.2s;
  }

  .toggle-btn:hover {
    transform: scale(1.2);
  }

  .about-content {
    margin: 20px;
    text-align: left;

    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease;
  }

  .about-content.open {
    max-height: 500px; 
  }

  .presentation {
    width: 100%;
    padding: 10px;
    border-radius: 5px;
    display: inline-block;
  }

  .info {
    display: flex;
    flex-direction:row;
    justify-content: space-around;
    margin-top: 50px;

  }