html,
body {
    margin: 0;
}

body {
    font-family: system;
    font-weight: normal;
    font-style: normal;
    font-size: 16px;
}

* {
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    -moz-osx-font-smoothing: grayscale;
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: transparent;
}

sup {
    vertical-align: super;
    font-size: 50%;
}

img,
video {
    display: block;
}