Dunno why that has upvotes, it's plain wrong. It will wrap all elements in a span, creating invalid HTML (<span class="foo"><h1>content1</h1>< ... ... <看更多>

Watch all the HTML things! ... Learn to use the span tag in HTML ... css id vs class attributes, when to use id and when to use class, ... ... <看更多>

This implementation is biased towards a fixed-length binary serialization format that doesn't have a way to represent an absent parent (root span). In this ... ... <看更多>

It would be helpful to have the Span-id section, found here https://w3c.github.io/distributed-tracing/report-trace-context.html#span-id, ... ... <看更多>