Icons in code blocks may block the code if there's a very long one-line code

[yingmanwumen]

As title, if a one-line code is very long, such as:

docker run --rm -it -v $(pwd)/notes:/notes zerokara:latest /root/.cargo/bin/mdbook build /notes

then, the icons at the right side of code block may cover on the code like:

[ehuss]

Thanks for the report! This is a known issue, closing as a duplicate of #1322.