body {
    background-color: #050505;
    color: #33ff33;
    font-family: 'Courier New', Courier, monospace;
    margin: 0;
    padding: 20px;
    letter-spacing: 1px;
}

header {
    text-align: center;
    border: 2px dashed #33ff33;
    padding: 20px;
    margin-bottom: 30px;
}

.keyword {
    color: #ffffff;
    font-weight: bold;
    text-decoration: underline;
}

.operator {
    color: #00ffcc;
}