html,
body {
    width: 100vw;
    height: 100vh;
    margin: 0;
    padding: 0;
    overflow: hidden;
}

#app {
    width: 100%;
    height: 100%;
    overflow: auto;
}

img,
svg {
    display: block;
}

* {
    font-size: 16px;
}