css
body {
  background-color: #FFD700;
  font-family: 'VT323', Courier, monospace;
  margin: 0 20px;
  padding: 20px 0;
  box-sizing: border-box;
  -moz-osx-font-stylization: 'VT323';
  font-size: 16px;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'VT323', Courier, monospace;
  font-weight: bold;
  color: #FF0000;
  text-shadow: 0 0 10px rgba(0, 0, 0, 0.6);
  border-bottom: 4px solid #000000;
  margin: 0 0 20px 0;
  padding: 10px 0;
}

a {
  text-decoration: none;
  color: #000000;
  font-weight: bold;
  text-shadow: 0 0 10px rgba(0, 0, 0, 0.6);
  border-bottom: 4px solid #000000;
  margin: 10px 0 10px 0;
  padding: 0 20px;
}

a:hover {
  background-color: #000000;
  color: #FFFFFF;
  text-decoration: none;
  transition: background-color 300ms;
}

a:visited {
  color: #000000;
  text-decoration: none;
  border-bottom: 4px solid #000000;
  text-shadow: 0 0 10px rgba(0, 0, 0, 0.6);
}

a:active {
  background-color: #000000;
  color: #FFFFFF;
  text-decoration: none;
  transition: background-color 300ms;
  border-bottom: 4px solid #000000;
}

img {
  border: 1px solid #FFFFFF;
  border-radius: 50%;
  margin: 20px;
}

code {
  font-family: 'VT323', Courier, monospace;
  font-size: 12px;
  background-color: #F7F7F7;
  padding: 10px 10px;
  border: 1px solid #000000;
  border-radius: 5px 5px 5px 5px;
  white-space: pre;
}