Take the Mozilla Developer Network (MDN), for example. Mozilla’s developer site offers a wealth of documentation on CSS, JavaScript, HTML, SVG and more, but navigating through it can be tedious ...

Sullivan believes CSS Lint is the first tool of its kind for CSS. “There are tools like that for JavaScript,” such as JSLint, she said. A World Wide Web consortium specification, CSS provides ...

Chrome also supports using these new custom variables in JavaScript without any issues. CSS variables are very new though have been in the works for years — but they’re not widely supported yet.