vue3怎么使用postcss-px-to-viewport适配屏幕

使用环境

名称	版本
vue	3.2.13
vue-cli	5.x
webpack	5.x
nodejs	16.15
postcss-px-to-viewport	^1.1.1

安装

npm install postcss-px-to-viewport --save-dev
yarn add postcss-px-to-viewport --save-dev
pnpm add postcss-px-to-viewport --save-dev

如果devserver正在运行，安装完成以后记得重启devserver。

配置

在项目根目录下创建 postcss.config.js 文件，并填入一下内容：

module.exports = {
  plugins: {
    // ...
    'postcss-px-to-viewport': {
      // options
      unitToConvert: "px",
      viewportWidth: 1920,
      viewportHeight:1080,
      unitPrecision: 3,
      propList: [
        "*"
      ],
      viewportUnit: "vw",
      fontViewportUnit: "vw",
      selectorBlackList: [],
      minPixelValue: 1,
      mediaQuery: false,
      replace: true,
      exclude: /(\/|\\)(node_modules)(\/|\\)/,
    }
  }
}

重新运行，打开浏览器查看属性值已经变为vw计算，就是这么简单。

项目	类型	描述
unitToConvert	(String)	unit to convert, by default, it is px.
viewportWidth	(Number)	The width of the viewport.
unitPrecision	(Number)	The decimal numbers to allow the vw units to grow to.
propList	(Array)	- The properties that can change from px to vw.
		-Values need to be exact matches.
		Use * at the start or end of a word. (['position'] will match background-position-y)
		Use ! to not match a property. Example: ['*', '!letter-spacing']
		Combine the "not" prefix with the other prefixes. Example: ['', '!font']
viewportUnit	(String)	Expected units.
fontViewportUnit	(String)	Expected units for font.
selectorBlackList	(Array)The selectors to ignore and leave as px.	If value is string, it checks to see if selector contains the string. ['body'] will match .body-class
		If value is regexp, it checks to see if the selector matches the regexp. [/^body$/] will match body but not .body
minPixelValue	(Number)	Set the minimum pixel value to replace.
mediaQuery	(Boolean)	replaces rules containing vw instead of adding fallbacks
exclude	(Regexp or Array of Regexp Ignore some files like 'node_modules')	If value is regexp, will ignore the matches files.
		If value is array, the elements of the array are regexp.
include	(Regexp or Array of Regexp) If include is set, only matching files will be converted, for example, only files under src/mobile/ (include: /\/src\/mobile\//)	If value is array, the elements of the array are regexp.
		If value is regexp, will ignore the matches files.
landscape	(Boolean)	Adds @media (orientation: landscape) with values converted via landscapeWidth.
landscapeUnit	(String)	Expected unit for landscape option
landscapeWidth	(Number)	Viewport width for landscape orientation.

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