How to display “Classic” built-up fractions with an horizontal line in CSS / JavaScript?

Question

I have a fraction and I want to display it neatly and nicely.

For example

4/5

would be

4
-
5

I have looked at this and

Answer 1

I, personally, see no need for JavaScript in this case.

Check out the following:

span.frac {
  display: inline-block;
  text-align: center;
  vertical-align: middle;
}
span.frac > sup, span.frac > sub {
  display: block;
  font: inherit;
  padding: 0 0.3em;
}
span.frac > sup {border-bottom: 0.08em solid;}
span.frac > span {display: none;}

7 42⁄73.

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