html {
    background-color: black;
} 

.title {
    color: green;
    font-family: monospace;
    font-size: 30px;
    text-align: center;
}

.content {
    color: green;
    font-family: monospace;
    font-size: 20px;
}

.back {
    display: inline-block;
    padding: 10px 15px;
    border: 1px solid #00ff00;
    color: #00ff00;
    text-decoration: none;
}

.back:hover {
  background-color: #00ff00;
  color: black;
}

a:hover {
  color: #66ff66;
  cursor: pointer;
}