Skip to content

食谱

在本节中,我们将探讨如何充分利用 EffCSS 的功能。

一个键对应多个值

某些 CSS 属性在不同浏览器上的支持情况有所不同,因此您可能需要指定多个选项。为此,请使用数组并按所需顺序排列值:

ts
import { customStyles } from 'effcss';

customStyles(() => {
    return {
        '.cls': {
            textDecoration: ['underline', 'underline dotted'] 
        } // -> .cls{text-decoration:underline;text-decoration:underline dotted;}
    };
});

这同样适用于对象:

ts
import { customStyles } from 'effcss';

customStyles(() => {
    return {
        '@font-face': [
            {
                fontFamily: '"Bitstream Vera Serif Bold"',
                src: 'url("https://mdn.github.io/shared-assets/fonts/FiraSans-Regular.woff2")'
            },
            {
                fontFamily: '"MyHelvetica"',
                src: 'local("Helvetica Neue Bold"), local("HelveticaNeue-Bold"), url("MgOpenModernaBold.woff2")',
                fontWeight: 'bold'
            }
        ] // -> @font-face { /* Bitstream Vera Serif Bold */} @font-face { /* MyHelvetica */};
    };
});

通用字体名称

fontfonts 工具允许您指定一个通用字体名称,该名称将始终用作最后一个备用值:

ts
import { font, customStyles } from 'effcss';

const base = font({
    src: `url("https://mdn.github.io/shared-assets/fonts/FiraSans-Regular.woff2")`,
    genericName: 'sans-serif'
});

const alt = font({
    src: `url("/fonts/roboto-regular.woff2") format("woff2"), url("/fonts/roboto-regular.woff") format("woff")`,
    weight: 400,
    style: 'normal',
    display: 'swap'
});

customStyles(() => {
    return {
        body: {
            fontFamily: base() // -> fontFamily: "base font name", sans-serif;
        },
        '.alt': {
            fontFamily: alt('"Inter"') // -> fontFamily: "alt font name", "Inter";
        },
        '.base-with-fallbacks': {
            fontFamily: base(alt, '"Inter"') // -> fontFamily: "base font name", "alt font name", "Inter", sans-serif;
        }
    }
})

独立样式生成器

您可以单独创建一个生成器函数,并使用它来动态生成样式表:

ts
import type { Generator } from 'effcss';
import { attributes, classNames } from 'effcss';

type Card = {
    w: 's' | 'm' | 'l';
    blur: true;
    card: {
        variant: 1 | 2;
        rounded: true;
    }
}

const stylesGenerator: Generator<Card> = (selectors) => {
    const {w, card, blur} = selectors;
    return {
        [w.s]: {
            width: '12px'
        },
        [blur.true]: {
            filter: 'blur(5px)'
        },
        [card]: {
            background: 'white'
        },
        [card.variant[1]]: {
            width: 'auto',
            display: 'block',
            padding: '12px',
            '&:hover': {
                cursor: 'pointer'
            }
        },
        // and so on
    }
};

export const createStylesheet = (type: 'attr' | 'cls') => {
    if (type === 'attr') return attributes(stylesGenerator);
    else return classNames(stylesGenerator);
};

根据 Apache-2.0 许可证发布。