css
/* Styles.css */
body {
  background-color: #000;
  color: #fff;
  font-family: 'Arial Black', Arial, sans-serif;
}

.letterforms {
  position: relative;
  width: 200px;
  height: 200px;
  background-color: #f00;
  border: 4px solid #f00;
  border-radius: 10px;
  box-shadow: 10px 10px 10px rgba(0, 0, 0, 0.5);
  margin: 20px;
  padding: 20px;
  font-size: 24px;
  line-height: 24px;
  text-align: center;
  font-weight: bold;
}

.letterform-letter {
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  background: #fff;
  border: 4px solid #fff;
  font-size: 36px;
}

.letterform-letter:hover {
  background: #f00;
  border: 4px solid #f00;
  transition: background 0.5s;
}

.letterforms .content {
  padding: 10px;
  background: #fff;
  border: 4px solid #fff;
  border-radius: 10px;
  font-size: 18px;
  line-height: 24px;
  color: #000;
  text-align: center;
  font-weight: bold;
}