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

html {
  margin: 0;
  padding: 0;
}

body {
  /* box */
  margin: 2em auto;
  max-width: 800px;
  padding: 1em;
  line-height: 1.4;
  text-align: justify;

  /* font */
  font-family: 'Open Sans', 'Arial', sans-serif;
  font-size: 1.1em;
}