* {
    margin: 0;
    padding: 0;
}
body{
    height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    width: 100vw;
    flex-grow: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

header {
    width: 100vw;
    text-align: center;
    margin-top: 30px;
}
img {
    width: 100vw;
    max-width: 300px;
}

h1{
    margin-bottom: 30px;
}