Ordering CSS Properties

order.css

/*
  1. Layout Properties (position, float, clear, display)
  2. Box Model Properties (width, height, margin, padding)
  3. Visual Properties (color, background, border, box-shadow)
  4. Typography Properties (font-size, font-family, text-align, text-transform)
  5. Misc Properties (cursor, overflow, z-index)
*/

.example {
  /* layout */
  display: inline-block;

  /* box-model */
  margin: 1em 0;
  padding: 1em 4em;

  /* visual */
  color: #fff;
  background: #196e76;
  border: 0.25em solid #196e76;
  box-shadow: inset 0.25em 0.25em 0.5em rgba(0, 0, 0, 0.3), 0.5em 0.5em 0 #444;

  /* typography */
  font-size: 3em;
  font-family: Avenir, Helvetica, Arial, sans-serif;
  text-align: center;
  text-transform: uppercase;
  text-decoration: none;

  /* miscellaneous */
  z-index: 8;
}