@import url('https://fonts.googleapis.com/css2?family=Creepster&display=swap');

body {
    margin: 0;
    padding: 0;
    background-color: #000;
    color: #ff0000;
    font-family: 'Creepster', cursive;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
}

h1 {
    font-size: 5rem;
    text-shadow: 0 0 20px #ff0000, 0 0 40px #ff0000;
    animation: flicker 2s infinite;
}

@keyframes flicker {
    0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% {
        opacity: 1;
    }
    20%, 24%, 55% {
        opacity: 0.8;
    }
    22% {
        opacity: 0.4;
    }
}