[postcss vw设置] 设置 postcss-px-to-viewport

.postcssrc

module.exports = {
  "plugins": {
    "postcss-preset-env":{},
    "postcss-px-to-viewport": {
      viewportWidth: 750, // (Number) The width of the viewport.
      viewportHeight: 1334, // (Number) The height of the viewport.
      unitPrecision: 3, // (Number) The decimal numbers to allow the REM units to grow to.
      viewportUnit: 'vw', // (String) Expected units.
      selectorBlackList: ['.ignore', '.hairlines'], // (Array) The selectors to ignore and leave as px.
      minPixelValue: 1, // (Number) Set the minimum pixel value to replace.
      mediaQuery: false // (Boolean) Allow px to be converted in media queries.
    }
  }
}