postcss-px-to-viewport installation and use

Introduction

If your style needs to adjust the width according to the viewport size, this script can convert the px unit in your CSS to vw, 1vw is equal to 1/100 viewport width.

Install

npm install

npm install postcss-px-to-viewport --save-dev

yarn installation

yarn add -D postcss-px-to-viewport

pnpm install

pnpm add -D postcss-px-to-viewport

configuration parameters

Default parameters:

{
    
    
  // (String) 需要转换的单位,默认为"px"
  unitToConvert: 'px',
  // (Number) 设计稿的视口宽度
  viewportWidth: 320,
  // (Number) 单位转换后保留的精度
  unitPrecision: 5,
  /**
   * (Array) 能转化为vw的属性列表
   * 传入特定的CSS属性;
   * 可以传入通配符""去匹配所有属性,例如:[''];
   * 在属性的前或后添加"*",可以匹配特定的属性. (例如['position'] 会匹配 background-position-y)
   * 在特定属性前加 "!",将不转换该属性的单位 . 例如: ['*', '!letter-spacing'],将不转换letter-spacing
   * "!" 和 ""可以组合使用, 例如: ['', '!font*'],将不转换font-size以及font-weight等属性
   */
  propList: ['*'],
  // (String) 希望使用的视口单位
  viewportUnit: 'vw',
  // (String) 字体使用的视口单位
  fontViewportUnit: 'vw',
  /**
   * (Array) 需要忽略的CSS选择器,不会转为视口单位,使用原有的px等单位。
   * 如果传入的值为字符串的话,只要选择器中含有传入值就会被匹配:例如 selectorBlackList 为 ['body'] 的话, 那么 .body-class 就会被忽略
   * 如果传入的值为正则表达式的话,那么就会依据CSS选择器是否匹配该正则:例如 selectorBlackList 为 [/^body$/] , 那么 body 会被忽略,而 .body 不会
   */
  selectorBlackList: [],
  // (Number) 设置最小的转换数值,如果为1的话,只有大于1的值会被转换
  minPixelValue: 1,
  // (Boolean) 媒体查询里的单位是否需要转换单位
  mediaQuery: false,
  // (Boolean) 是否直接更换属性值,而不添加备用属性
  replace: true,
  /**
   * (Array or Regexp) 忽略某些文件夹下的文件或特定文件,例如 'node_modules' 下的文件
   * 如果值是一个正则表达式,那么匹配这个正则的文件会被忽略
   * 如果传入的值是一个数组,那么数组里的值必须为正则
   */
  exclude: undefined,
  /**
   * (Array or Regexp) 如果设置了include,那将只有匹配到的文件才会被转换,例如只转换 'src/mobile' 下的文件 (include: /\/src\/mobile\//)
   * 如果值是一个正则表达式,将包含匹配的文件,否则将排除该文件
   * 如果传入的值是一个数组,那么数组里的值必须为正则
   */
  include: undefined,
  // (Boolean) 是否添加根据 landscapeWidth 生成的媒体查询条件 @media (orientation: landscape)
  landscape: false,
  // (String) 横屏时使用的单位
  landscapeUnit: 'vw',
  // (Number) 横屏时使用的视口宽度
  landscapeWidth: 568
}

neglect

You can ignore single-line conversions with a special comment:

  • /* px-to-viewport-ignore-next */ — on another line, prevent transition on next line
  • /* px-to-viewport-ignore */ — after the property on the right, preventing transitions on the same line

Tip: The current version v1.1.1has not been updated for a long time, and it does not take effect in the vue3 project

Using PostCss configuration files

Create a new postcss.config.js in the project root directory, and add the following configuration to postcss.config.js:

module.exports = {
    
    
  plugins: {
    
    
    // ...
    'postcss-px-to-viewport': {
    
    
      // 上面的配置参数
    }
  }
}

You need to restart the project after modifying the configuration

input Output

// 输入
section {
    
    
  width: 320px;
  height: 300px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin: 0 auto;
  background-color: aqua;
}
// 输出
section {
    
    
  width: 100vw;
  height: 93.75vw;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin: 0 auto;
  background-color: aqua;
}

question

The current version v1.1.1has not been updated for a long time, resulting in the failure of functions such as and, currently only all conversions are 忽略possibleinclude

2022-05-26 update

Use the postcss-px-to-viewport console to report the following code:

postcss-px-to-viewport: postcss.plugin was deprecated. Migration guide: https://evilmartians.com/chronicles/postcss-8-plugin-migration

It can be solved by postcss-px-to-viewportreplacing postcss-px-to-viewport-8-pluginthe configuration file:

module.exports = {
    
    
  plugins: {
    
    
    // ...
    'postcss-px-to-viewport-8-plugin': {
    
    
      // 上面的配置参数
    }
  }
}

However, it still cannot solve the problem of function failure under the vue3 project 忽略and includeother functions

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Origin blog.csdn.net/sunddy_x/article/details/124859425