// @flow
/**
* CSS to style the selection psuedo-element.
*
* @example
* // Styles as object usage
* const styles = {
* ...placeholder({'color': 'blue'})
* }
*
* // styled-components usage
* const div = styled.input`
* ${placeholder({'color': 'blue'})}
* `
*
* // CSS as JS Output
*
* 'input': {
* '&:-moz-placeholder': {
* 'color': 'blue',
* },
* '&:-ms-input-placeholder': {
* 'color': 'blue',
* },
* '&::-moz-placeholder': {
* 'color': 'blue',
* },
* '&::-webkit-input-placeholder': {
* 'color': 'blue',
* },
* },
*/
function placeholder(styles: Object, parent: string = '&') {
return {
[`${parent}::-webkit-input-placeholder`]: {
...styles,
},
[`${parent}:-moz-placeholder`]: {
...styles,
},
[`${parent}::-moz-placeholder`]: {
...styles,
},
[`${parent}:-ms-input-placeholder`]: {
...styles,
},
}
}
export default placeholder
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