*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    /* font-family: Arial, sans-serif;
    */
    padding: 20px;
    background-color: #f0f0f0;
  }
  
  .container {
    max-width: 800px;
    margin: auto;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: justify;
    padding-left: 30px;
    line-height: 1.6em;
  }
  h1{
    text-align: center;
    color: blue;
  }
  ul, ol, li{
    padding-left: 20px;
  }
  
  
  #function-display {
    margin-bottom: 20px;
  }
  
  canvas {
    width: 100%;
    height: auto;
    border: 1px solid #ccc;
    background-color: #fff;
  }
  
  button {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    display: block;
    margin: 0 auto 20px auto;
    margin-top: 15px;
    background-color: aqua;
  }