Answer by ibolmo for CSS strikethrough different color from text?

Adding to @gojomo you could use :after pseudo element for the additional element. The only caveat is that you'll need to define your innerText in a data-text attribute since CSS has limited content functions.

s {  color: red;  text-align: -1000em;  overflow: hidden;}s:after {  color: black;  content: attr(data-text);}

<s data-text="Strikethrough">Strikethrough</s>