css
/* Styles.css */
body {
  font-family: 'Comic Sans', 'Arial', sans-serif;
  background-image: linear-gradient(90deg, #FF0000, #FFFF00);
  background-size: 100% 100%;
  background-position: 0 0;
  background-repeat: no-repeat;
  margin: 0px 0px 0px 0px;
  padding: 0px 0px 0px 0px;
  border: 4px solid black;
  border-style: solid;
  border-width: 4px;
  box-sizing: border-box;
  display: flex;
}

body:after {
  content: '';
  width: 0;
  height: 0;
  position: absolute;
  top: 0;
  left: 0;
  background-image: linear-gradient(90deg, #000000, #000000);
  background-size: 100% 100%;
  background-position: 0 0;
  background-repeat: no-repeat;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Comic Sans', 'Arial', sans-serif;
  color: #000000;
  text-shadow: 2px 2px 2px black;
  border: 2px solid black;
  padding: 2px 10px 2px 10px;
  margin: 0px 0px 10px 0px;
  text-align: center;
  background-color: #FFFFFF;
  border-radius: 4px 4px 4px 4px;
}

h1 {
  font-size: 24px;
}

h2 {
  font-size: 20px;
  font-weight: bold;
}

h3 {
  font-size: 18px;
  font-weight: bold;
  text-align: left;
}

p {
  font-size: 14px;
  font-family: 'Comic Sans', 'Arial', sans-serif;
  color: #000000;
  text-shadow: 2px 2px 2px black;
  border: 2px solid black;
  padding: 2px 10px 2px 10px;
  margin: 10px 0px 10px 10px;
  text-align: left;
  background-color: #FFFFFF;
  border-radius: 4px 4px 4px 4px;
  line-height: 1.5;
}

a {
  text-decoration: none;
  color: #00FFFF;
  border-bottom: 4px solid #000000;
  padding: 4px 10px 4px 10px;
  background-color: #FFFFFF;
  text-align: center;
  border-radius: 4px 4px 4px 4px;
  transition: all 0.5s ease;
  text-shadow: 2px 2px 2px black;
  font-size: 18px;
  font-weight: bold;
  text-align: center;
}