html {
  font-size: 16px;
  font-family: "Noto Sans JP", sans-serif;
  color: #000000;
}

  h1 {
    font-size: 60px;
    text-align: center;
    color: #000000;
  }

h2 {
  font-size: 30px;
  color: #000000;
}

h3 {
  font-size: 24px;
  color: #000000
}

a {
  color: #000000
}
  
  p,
  li {
    font-size: 16px;
    line-height: 2;
    letter-spacing: 1px;
    color: #000000;
  }
  html {
    background-color: #ffffff;
  }

  body {
    width: 1000px;
    position: relative;
    top: 25px;
    margin: 0 auto;
    background-color: #fafafa;
    padding: 0 20px 20px 20px;
    border: 4px solid #fafafa;
  }

  /*ダークモード*/
  @media (prefers-color-scheme: dark) {
html {
  color: #ffffff;
}

  h1 {
    color: #ffffff;
  }

h2 {
  color: #ffffff;
}

h3 {
  color: #ffffff;
}

a {
  color: #ffffff;
}
  
  p,
  li {
    color: #ffffff;
  }
  html {
    background-color: #000000;
  }

  body {
    background-color: #1f1f1f;
    border: 4px solid #1f1f1f;
  }
}