div {
  color: what;
  color: is;
  color: this;
  font: what;
  font: is;
  font: this;
  background: what;
  background: is;
  background: this;
  border: what;
  border: is;
  border: this;
  background: what what;
  background: is is;
  background: this this;
  background: what what;
  background: is is;
  background: this this;
  color: red;
}
div h1 {
  font-size: 2em;
}
div h2 {
  font-size: 1.5em;
}
div h3 {
  font-size: 1.2em;
}
span {
  color: 0;
  color: 1;
  color: 2;
  color: 3;
  color: 4;
  color: 5;
  color: 6;
  color: 7;
  color: 8;
  color: 9;
  color: 10;
}
pre {
  color: 1;
  color: 2;
  color: 3;
  color: 4;
  height: 1;
  height: 2;
  height: 3;
  height: 4;
  height: 5;
  cool: 10;
  cool: 9;
  cool: 8;
  cool: 7;
  cool: 6;
  cool: 5;
  cool: 4;
  cool: 3;
}
div {
  a: false;
  b: true;
  c: true;
  c: true;
}
.bg-gray-0 {
  background-color: #f8f9fa;
}
.bg-gray-1 {
  background-color: #f1f3f5;
}
.bg-red-0 {
  background-color: #fff5f5;
}
.bg-red-1 {
  background-color: #ffe3e3;
}
a.a-blue {
  color: #44e;
}
a.a-black {
  color: #333;
}
div.div-green {
  color: #8d8;
}
div.div-black {
  color: #333;
}