PostCSS Opacity Percentage

PostCSS plugin to transform percentage-based opacity values to more compatible floating-point values.

Install

Using npm:

npm install --save-dev postcss postcss-opacity-percentage

Using yarn:

yarn add --dev postcss postcss-opacity-percentage

/* Input */
.foo {
  opacity: 45%;
}

/* Output */
.foo {
  opacity: 0.45;
}

postcss([
  require('postcss-opacity-percentage'),
]);

See PostCSS documentation for examples for your environment.

If you are using postcss-preset-env@>=7.3.0, you already have this plugin installed via this package.

The preserve option determines whether the original percentage value is preserved. By default, it is not preserved.

// Keep the original notation
postcss([
  require('postcss-opacity-percentage')({preserve: true}),
]);

/* Input */
.foo {
  opacity: 45%;
}

/* Output */
.foo {
  opacity: 0.45;
  opacity: 45%;
}