css
body {
  font-family: "Menlo", monospace;
  background: linear-gradient(135deg, #FF0000 0px, #0000FF 1000px);
  margin: 20px;
}

body * {
  font-size: 20px;
  line-height: 1.2;
  color: #FFFFFF;
  font-weight: bold;
  text-transform: none;
  text-overflow: ellipsis;
}

h1 {
  border-top: 4px solid #000000;
  border-bottom: 4px solid #000000;
  padding: 10px;
  background: #FF0000;
  color: #FFFFFF;
  text-align: center;
  margin: 0;
  font-size: 40px;
  text-transform: uppercase;
  text-shadow: 0 0 0 #000000;
  box-shadow: 0 0 0 #000000;
}

h2 {
  border-top: 4px solid #000000;
  border-bottom: 4px solid #000000;
  padding: 5px;
  background: #FFC000;
  color: #000000;
  text-align: center;
  margin: 0;
  font-size: 25px;
  text-transform: uppercase;
  text-shadow: 0 0 0 #FFFFFF;
  box-shadow: 0 0 0 #FFFFFF;
}

h3 {
  border-top: 4px solid #000000;
  border-bottom: 4px solid #000000;
  padding: 5px;
  background: #00FF00;
  color: #000000;
  text-align: center;
  margin: 0;
  font-size: 20px;
  text-transform: none;
  text-shadow: 0 0 0 #000000;
  box-shadow: 0 0 0 #000000;
}

p {
  background: #FFFFFF;
  padding: 20px;
  border: 4px solid #000000;
  border-radius: 10px;
  box-shadow: 0 0 0 #000000;
}

a {
  color: #000000;
  text-decoration: none;
  border: 4px solid #000000;
  border-radius: 10px;
  background: #C0C0C0;
  padding: 10px;
  text-align: center;
  text-shadow: 0 0 0 #000000;
  box-shadow: 0 0 0 #000000;
}