css
/* styles.css */

body {
  background: #f2f2f2;
  font-family: 'Open Sans', sans-serif;
  font-size: 18px;
  line-height: 1.5;
  color: #333;
  margin: 0;
  padding: 0;
}

body * {
  box-sizing: border-box;
  border: 4px solid #000;
}

h1 {
  font-weight: bold;
  font-size: 36px;
  line-height: 1.2;
  color: #ff0000;
  text-shadow: 0 1px 0 #000;
  border: 4px solid #000;
  padding: 10px 20px;
  margin: 0 0 10px 0;
}

h2 {
  font-size: 24px;
  line-height: 1.2;
  color: #000;
  text-shadow: 0 1px 0 #fff;
  border: 4px solid #000;
  padding: 10px 20px;
  margin: 0 0 10px 0;
}

h3 {
  font-size: 20px;
  line-height: 1.2;
  color: #000;
  text-shadow: 0 1px 0 #fff;
  border: 4px solid #000;
  padding: 10px 20px;
  margin: 0 0 10px 0;
  margin-top: 20px;
  background: #f7dc6d;
}

p {
  font-size: 16px;
  line-height: 1.5;
  color: #333;
  margin: 10px 0;
  padding: 10px 20px;
  background: #f2f2f2;
  border: 4px solid #000;
  border-radius: 10px;
  box-shadow: 0 1px 0 #000;
}

a {
  color: #000;
  text-decoration: none;
  background: #f7dc6d;
  padding: 10px 20px;
  border: 4px solid #000;
  border-radius: 10px;
  box-shadow: 0 1px 0 #000;
  text-shadow: 0 1px 0 #fff;
}

a:hover {
  background: #ff0000;
  border-color: #000;
  text-shadow: 0 1px 0 #000;
  cursor: pointer;
}