*:focus {
  outline: none;
}

*, *:after, *:before {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  -webkit-user-drag: none;
  -webkit-text-size-adjust: none;
}

html, body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}

body {
  -webkit-backface-visibility: hidden;
}