CSSサンプル

demo.css

#london {
  background-color: gray;
}

#Batman {
  background-color: #000;
  opacity: 0.3;
}

#hulk {
  height: 200%;
  width: 200%;
  color: green;
}

.ninja {
  visibility: hidden;
  color: #000;
  background: #000;
}

#Titanic {
  vertical-align: bottom;
  z-index: -1000;
  padding-bottom: none;
  transform: rotate(-45deg);
}

.toilet-paper {
  overflow-y: scroll;
}

#ikea {
  display: table;
}

.politician {
  position: absolute;
}

.politician.elect {
  transform: rotate(180deg);
  opacity: .1;
}

#God {
  position: absolute;
  display: none;
}