body, html {
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: 'Arial', sans-serif;
    background: #f7f7f7;
  }
  
  .container {
    height: 100%;
    display: flex;
    flex-direction: column;
  }
  
  .title, .footer {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-basis: 0; 
  }

  .content {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-basis: 0; 
    width: 80%;
    margin: auto;
  }
  
  .title {
    flex-grow: 2; 
    color: #333;
  }
  
  .content {
    flex-grow: 6; 
    color: #666;
    padding: 0 20px; 
    padding: 0 20px; 
    flex-direction: column; 
  }

  .instructions {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 80%;
  }

  .buttons {
    height: 20%;
    display: flex;
    align-items: flex-end;
    align-items: center;
  }
  
  .footer {
    flex-grow: 2; /* 20% */
    flex-direction: column; 
  }
  
  h1 {
    font-size: 36px;
    margin: 0;
  }

  h2.lecture-name {
    font-size: 24px;
    margin-bottom: 5px;
  }
  
  p {
    font-size: 21px;
    max-width: 800px;
    text-align: left;
    margin-bottom: 20px; 
  }

  li {
    font-size: 21px;
    max-width: 800px;
    text-align: left;
    margin-bottom: 5px; 
  }
  
  .button {
    padding: 10px 20px;
    font-size: 18px;
    color: white;
    background-color: #0056b3;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.3s ease;
  }
  
  .button:hover {
    background-color: #004494;
  }

  .lecture {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px;
  }

  .lecture-button {
    padding: 5px 30px;
    font-size: 18px;
    color: white;
    background-color: #4CAF50;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.3s ease;
  }