body {
  /* padding-top: 5rem; */
  /* font-family: SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace; */
  font-family: Arial, Helvetica, sans-serif;
  /* font-size: 1.2rem; */
}

.mb1 {
  margin-bottom: 0.3rem;
}

.mb2 {
  margin-bottom: 0.6rem;
}

.ml1 {
  margin-left: 0.3rem;
}

.ml2 {
  margin-left: 0.6rem;
}

.ml3 {
  margin-left: 0.9rem;
}

.ml4 {
  margin-left: 1.2rem;
}