body {
    margin: 0;
    font-family: Arial, sans-serif;
  }
  
  .join-us-container {
    width: 100%;
    max-width: 800px;
    margin: 50px auto;
    text-align: center;
  }
  
  .section-heading {
    margin-bottom: 30px;
  }
  
  .boxes {
    display: flex;
    justify-content: space-between;
    margin-top: 50px;
  }
  
  .box {
    width: 200px;
    height: 200px;
    background-color: #fff;
    color: #000;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    border-radius: 10px;
    box-shadow: 0px 0px 20px rgba(0, 0, 0, 0.4);
    opacity: 0;
    transition: opacity 0.5s ease;
  }
  
  .box h3 {
    margin: 0;
  }
  
  .left, .top, .right {
    opacity: 0;
  }
  
  @keyframes slideFromLeft {
    from {
      opacity: 0;
      transform: translateX(-200px);
    }
    to {
      opacity: 1;
      transform: translateX(0);
    }
  }
  
  @keyframes slideFromTop {
    from {
      opacity: 0;
      transform: translateY(-200px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  @keyframes slideFromRight {
    from {
      opacity: 0;
      transform: translateX(200px);
    }
    to {
      opacity: 1;
      transform: translateX(0);
    }
  }