import { css, extractCss } from '@tesseract-design/goofy-goober'; const getClassName = (borderColor?: string) => css.cx( css` padding: 1rem; `, css.nest('.child-class')( css` color: red; `, ), css.media('(min-width: 600px)')( css` padding: 2rem; `, ), css.if(typeof borderColor === 'string')( css` border-width: 1px; border-style: solid; ` ), css.dynamic({ 'border-color': borderColor, }), ) // Use setup() only with React/Preact const element = document.createElement('div') const childElement = document.createElement('div') childElement.classList.add('child-class') childElement.innerText = 'Hello, world!' element.appendChild(childElement) element.classList.add(...getClassName('red').split(' ')) document.body.appendChild(element) const styleId = 'goofy-goober' const style = document.getElementById(styleId) ?? document.createElement('style') style.id = styleId style.innerText = extractCss() if (style.parentElement === null) { document.head.appendChild(style) }