jss-assign-specificity-increase
Increases specificity of selectors with configurable prefix. Port of postcss-increase-specificity.
By default this plugin uses :not(#\20), :not(.\20) and :not(\20) instead of generating unlikely appearing ids…
Rationale: \20 is a css escape for U+0020 Space, and neither classname, nor id, nor tagname can contain a space
install
npm install --save jss-assign-specificity-increase
yarn jss-assign-specificity-increase
Usage
import jss from 'jss'
import preset from 'jss-preset-default'
import assignSpecificityIncrease from 'jss-assign-specificity-increase';
jss
.setup(preset())
.use(assignSpecificityIncrease({ prefix: 'html body ', repeat: 1 }))
const styles = {
button: {
fontSize: 12,
'&:hover': {
background: 'blue'
}
},
ctaButton: {
extend: 'button',
'&:hover': {
background: color('blue').darken(0.3).hexString()
}
},
'@media (min-width: 1024px)': {
button: {
width: 200
}
}
}
const {classes} = jss.createStyleSheet(styles).attach()
document.body.innerHTML = `
<button class="${classes.button}">Button</button>
<button class="${classes.ctaButton}">CTA Button</button>
`Result
<head>
<style type="text/css">
html body .button-123456 {
font-size: 12px;
}
html body .button-123456:hover {
background: blue;
}
html body .ctaButton-789012 {
font-size: 12px;
}
html body .ctaButton-789012:hover {
background: red;
}
@media (min-width: 1024px) {
html body .button-123456 {
min-width: 200px;
}
}
</style>
</head>
<body>
<button class="button-123456">Button</button>
<button class="ctaButton-789012">CTA Button</button>
</body>API
increaseSpecificity(options)
Options:
prefix
Type: String
Default: :not(#\20)
What string/selectors to add before all styles.
repeat
Type: Number
Default: 3
How many times should plugin repeat prefix.
Disable plugin for a Sheet
jss.createStyleSheet(styles, {assignSpecificityIncrease: false})License
MIT © Vladimir Starkov