In order to provide security for our customers as well as versatility to list products on non-HTML devices, after July 17, 2021, we will stop supporting the use of HTML tags in the product description on product detail pages. Please refrain from We discourage any use using of HTML content on detail pages as outlined on our Product detail page rules Help page.
We encourage you to update any product detail page for your listings with an HTML tag ahead of the date indicated above. You can use Seller Central or your usual channel for such updates.
Any product description containing HTML tags in the product detail page which are not supported after July 17, 2021, will stop showing HTML formatting. For example, if you use HTML tags in one line of a product description, the line might be removed or shown without HTML formatting, depending on the usage of the tag.
For more information, go to Product detail page rules.