div.module[hidden] {
  display: none;
}
body {
  font-size: 15px;
}
style[contenteditable] {
  display: block;
  background-color: white;
  border-radius: 10px;
  padding: 10px;
}
#horizontal-buttons::before {
  text-orientation: mixed;
  writing-mode: vertical-lr;
  line-height: 20px;
  max-height: 15px;
  padding-top: 5px;
  padding-bottom: 10px;
}
pizza {
  background-color: peru;
}
pizza:hover {
  background-color: yellow;
}
pizza:active {
  background-color: red;
}