HTML s element
HTML <s> tag defines the content that is no longer valid or true. For example, the price of something that has been changed.
Tag omission
Both opening and closing tags are necessary for the s element.
Global Attributes
All the global attributes are applicable on the s element.
HTML formatting introduces many other elements that format the text. For example, underline, insert, del, code etc.
If a piece of content has been deleted then del element is more appropriate.