@import url("https://cdnjs.cloudflare.com/ajax/libs/normalize/8.0.1/normalize.min.css");

h1 {
  text-align: center;
}

.mensa {
  text-align: center;
}

.mensa .speiseplan {
  display: inline-block;
  margin-bottom: 25px;
  border: 1px dotted gray;
  padding: 25px;
}