html, body {
  @import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400;700&display=swap');
  width: 100%;
  margin: 0;
  box-sizing: border-box;
  font-family: "Open Sans", sans-serif;
}

div {
  box-sizing: border-box;
}

pre {
  overflow: auto;
}
code {
  font-family: Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;
  font-size: 14px;
}
#how-to-use {
  max-width: 1170px;
  margin: 0 auto;
}