How did Dianping manage to display the html tags in the comments as text?

when crawling Dianping"s comments with a crawler, I found that some fonts in the comments were replaced with html tags, but the text was still displayed when it was displayed. As shown in the picture, the "Li" in "in the community" was replaced by a span tag, but still showed the text "Li". How did you do this?


uses SVG
http://s3plus.meituan.net/v1/.
and then locates

via background-position
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