html,
body,
#app {
  font-family:
    Source Sans Pro,
    -apple-system,
    BlinkMacSystemFont,
    Segoe UI,
    Roboto,
    Helvetica Neue,
    Arial,
    sans-serif;
  -ms-text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
  box-sizing: border-box;
  -webkit-overflow-scrolling: touch;
  color: #fff;
  font-size: 16px;
  width: 100%;
  height: 100%;
}
img {
  -webkit-user-drag: none;
  -webkit-user-select: none;
  user-select: none;
}
*,
*:before,
*:after {
  box-sizing: border-box;
  margin: 0;
}
.main {
  width: 100%;
  height: 100%;
  -webkit-overflow-scrolling: touch;
  margin: 0;
  padding: 0;
}