noctbot/web/static/main.css

html {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
}

body {
    display: flex;
    flex-direction: column;
    width: 100%;
    min-height: 100vh;
    line-height: 1.0;
}

#sapper {
    display: flex;
    flex-direction: column;
    flex: 1 1 0%;
}