body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #212529;
}

img {
    width: 100px;
}

h1 {
    color: black;
}

@media (max-width: 375px) {
    body {
        flex-direction: column;
    }
}