body {
  background-color: lightgray;
  font-size: 14ptvw;
  padding: 5px;
  font-family: Serif, monospace;
}

a {
  color: blue;
}

aside {
  border-style: solid;
  border-color: white black black white;
  padding: 5px;
  text-align: center;
}

h1, h2, h3, h4, footer {
  text-align: center;
}

pre {
  white-space: pre-wrap;
  word-wrap: break-word;
  -moz-control-character-visibility: visible;
}

th {
  border: 1px solid black;
}

.left {
  border-right: 1px solid black;
  border-left: 1px solid black;
  border-bottom: 1px solid black;
  text-align: center;
}

.right {
  border-right: 1px solid black;
  border-bottom: 1px solid black;
  text-align: center;
}

.squareBullets {
  list-style-type: square;
  padding-left: 10px;
  margin-left: 10px;
}

.noBullets {
  list-style-type: none;
  padding-left: 0px;
  margin-left: none;
}

@media screen and (min-width: 769px) {
  body {
    max-width: 450px;
    margin-left: auto;
    margin-right: auto;
  }

  .squareBullets {
    margin-left: 50px;
  }
}

@media (prefers-color-scheme: dark) {
  body {
    color: lightgray;
    background-color: black;
  }
  
  a {
    color: red;
  }

  aside {
    border-color: lightgray gray gray lightgray;
  }

  th {
  border: 1px solid white;
  }
  
  .left {
  border-right: 1px solid white;
  border-left: 1px solid white;
  border-bottom: 1px solid white;
  text-align: center;
  }
  
  .right {
  
  border-right: 1px solid white;
  border-bottom: 1px solid white;
  text-align: center;
  }
}