csslint:tldr:ffe68
The command "csslint ${file-css}" is using a tool called CSSLint to check the quality and validity of a CSS file specified by the variable "${file-css}".
CSSLint is a popular static analysis tool that helps identify potential errors, stylistic issues, and performance problems in CSS code. It applies a set of predefined rules to the CSS file and generates a report highlighting any issues found.
In this case, the "${file-css}" is a placeholder representing the path or filename of the CSS file you want to check. You need to replace "${file-css}" with the actual path or filename of the CSS file you want to analyze.
By running this command, CSSLint will read the specified CSS file, apply its rules, and provide a detailed report indicating any problems or suggestions for improvement.