css
/* Quantum Superposition Style Sheet */

body {
  background-image: linear-gradient(to bottom, #f0f0f0, #f0f0f0);
  background-size: 100px 100px;
  background-position: 0 0;
  background-repeat: repeat;
  font-family: Arial, sans-serif;
  font-size: 24px;
  line-height: 1.5;
  color: #000;
  text-align: center;
}

h1 {
  background-color: #000;
  border: 4px solid #333;
  border-radius: 5px;
  font-family: 'Arial Black', serif;
  color: #fff;
  text-align: center;
  padding: 5px 10px 5px 10px;
  box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.5);
  margin: 20px 0 10px 0;
}

h2 {
  background-color: #333;
  border: 4px solid #000;
  border-radius: 5px;
  font-family: 'Arial Black', serif;
  color: #fff;
  text-align: center;
  padding: 5px 10px 5px 10px;
  box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.5);
  margin: 10px 0 20px 0;
}

h3 {
  background-color: #000;
  border: 4px solid #333;
  border-radius: 5px;
  font-family: 'Arial Black', serif;
  color: #fff;
  text-align: center;
  padding: 5px 10px 5px 10px;
  box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.5);
  margin: 20px 0 10px 0;
}

p {
  background-color: #333;
  border: 4px solid #000;
  border-radius: 5px;
  font-family: Arial, sans-serif;
  color: #fff;
  text-align: center;
  padding: 5px 10px 5px 10px;
  box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.5);
  margin: 20px 0 10px 0;
}

a {
  background-color: #000;
  border: 4px solid #333;
  border-radius: 5px;
  font-family: 'Arial Black', serif;
  color: #fff;
  text-align: center;
  padding: 5px 10px 5px 10px;
  box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.5);
  text-decoration: none;
  margin: 20px 0 10px 0;
}

a:hover {
  background-color: #000;
  border: 4px solid #333;
  border-radius: 5px;
  font-family: 'Arial Black', serif;
  color: #fff;
  text-align: center;
  padding: 5px 10px 5px 10px;
  box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.5);
  text-decoration: none;
  margin: 20px 0 10px 0;
}