* {
  margin: 0;
  padding: 0;
  outline: 0;
  box-sizing: border-box;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
}

*:after, *:before {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

img {
  max-width: 100%;
}

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