Update css-syntax.js
Update css-syntax.js

it resolves some problem getting arguments from ex. minmax(min-content, 1fr) . It could be reason the last update, check it please"
delebash/css-grid-polyfill,FremyCompany/css-grid-polyfill,delebash/css-grid-polyfill,englishextra/css-grid-polyfill,englishextra/css-grid-polyfill