Vetur: lang="postcss" Nested CSS cannot prompt

[huzedong2015]

test.vue

……
……
<style lang="postcss">
body {
    display: flex;// auto prompt

    h2 {
        align-items: center; // no prompt
    }
}
</style>

[huzedong2015]

Temporary solutions

_webpack.config.js_

{
    test: /\.s?css$/,
    use: [
        "css-loader",
        "postcss-loader"
    ]
}

_Vue File_

<style lang="scss">
……
</style>

[octref]

Nesting not in CSS spec yet. Vetur uses vscode-css-languageservice so until it has support for nesting Vetur won't have it.