HTML strike tag is used inside webpages to specify strikethrough text.
<strike>put strike content here...</strike>
This is the example of strike tag to show price of a product.
<p>You can purchase your T-shirt in discounted price <strike>$26</strike>$20.</p>
You can purchase your T-shirt in discounted price
The strike tag is obsoleted tag. See W3C Specification for this tag.