Create a div with the two CSS properties "display:inline" and "float:right". This will display an error in the CSS linter saying that the float property will have no effect however if you view this on a webpage you will see that the float is clearly working.
From @DannyJJK on July 8, 2016 8:44
Steps to Reproduce:
Create a div with the two CSS properties "display:inline" and "float:right". This will display an error in the CSS linter saying that the float property will have no effect however if you view this on a webpage you will see that the float is clearly working.
Example: https://jsfiddle.net/d9utag4f/
Copied from original issue: Microsoft/vscode#8912