body {
  font-family: 'Roboto';
  padding: 40px;
}
ul {
  margin: 0;
  padding: 0;
}

.category-group .categories {
  display: grid;
  grid-template-columns: auto auto auto auto;
}

#screenLogo {
  float: left;
  margin: 1em;
}

#header {
  max-width: 90%;
  margin: auto;
  overflow: auto;
  text-align: center;
}