export default function buildCSS( cssObj ) { let css = ''; for ( const [ key, value ] of Object.entries( cssObj ) ) { if ( value.length < 1 ) { continue; } let tempOutput = key + '{'; let elementsAdded = 0; for ( const [ index, properties ] of Object.entries( value ) ) { // eslint-disable-line no-unused-vars for ( const [ attribute, val ] of Object.entries( properties ) ) { if ( ! val && 0 !== val ) { continue; } elementsAdded++; tempOutput += attribute + ': ' + val + ';'; } } tempOutput += '}'; if ( elementsAdded > 0 ) { css += tempOutput; } } return css; }