html,
body {
  margin: 0;
  padding: 0;
}

body {
  color: #ffffff;
  font-family:sans-serif;
  font-size:16px;
  text-align:center;
  width: 100%;
  height: 100%;
  max-height: 100%;
  background: #00a4da;
  margin: 0px;
  overflow: hidden;
  outline: none;
  border: 0;
  padding: 0;
  box-sizing: border-box;
}

* {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
}

canvas {
  position:absolute;
  top:0;bottom:0;right:0;left:0;
  background: #ffffff;
  margin:auto;
  display: block;
  border: 0;
  overflow: hidden;
  outline: none;
  padding: 0;
  box-sizing: border-box;
}