rrweb-player/dist/global.css

rrweb's replayer UI

html,
body {
  position: relative;
  width: 100%;
  height: 100%;
}

body {
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
}