i want css intellisense can use in other file type

[xiachaoxulu]

i want css intellisense can use in other file type
maybe：

[xiachaoxulu]

css.intellisenseExtension [
"html",
"postcss"
]

[aeschli]

There's already css completion in HTML.

Please explain more what you mean.

[xiachaoxulu]

yes, in html ,when i write words in style tag，i get the css intellisense。
but，i want to write css in .postcss , such as index.postcss,or index.abcdefg.
how can i get css intellisense in that filetype.
so,i suggest ,vscode css language service can give the interface for config what file extension can get css intellisence.
maybe :
css.intellisenseExtension [
"abcd",
"postcss"
]

[aeschli]

You can just associate your postcss file extension to css.
But you likely want us to fully parse and understand cssnext. That's microsoft/vscode-css-languageservice#47