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

/**
 * Firefox & IE both seem to default to a margin of 0.5em (8px)
 * while Chrome seems to have no preset margin
 */
body {
  margin: 0;
}