body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #111111;
    text-align: center;
    user-select: none;
}

.content {
    background-color: #eeeeee;
    color: #111111;
    padding: 20px;
    margin: 50px 100px;
    border-radius: 50px;
}

h1 {
    background-color: #dddddd;
    padding: 10px;
    border-radius: 20px;
    color: black;
    font-size: 50px;
}

p {
    font-size: 20px;
    line-height: 1.6;
    padding: 20px;
}

h1#neon_sign {
    font-size: 60px;
    color: deeppink;
    text-shadow: 0 0 5px lightpink, 0 0 10px lightpink, 0 0 20px lightpink, 0 0 40px lightpink;
    animation: flicker 2s infinite alternate;
}

@keyframes flicker {
    0%, 30%, 100% { opacity: 1; }
    60% { opacity: 0.7; }
    80% { opacity: 0.4; }
}