xssbook/public/css/404.css

body {
    background-color: var(--secondary)
}

.error {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100vw;
    height: 100vh;
    flex-direction: column;
}

.error .logo {
    font-size: 100px;
}

.desc {
    font-size: 40px;
}