Simple CSS to simulate slightly opaque, clear tape, using dotted borders for serrated edges.

clear-tape.css

.clear-tape {
  /* Slightly opaque background */
  background-color: rgba(255,255,255,0.5);
  /* Dark, slightly opaque border */
  border: 1px solid rgba(0,0,0,0.5);
  /* Dotted side borders to simulate serrated edges */
  border-left: 2px dotted rgba(0,0,0,0.2);
  border-right: 2px dotted rgba(0,0,0,0.2);
  /* Very slight shadow */
  box-shadow: 0px 0px 4px rgba(0,0,0,0.2);
}