lee_xiumei

摘要： <div class='thin-border'></div> .thin-border { position: relative; width: 40px; height: 20px; } .thin-border::after { content: ' '; position: absolute 阅读全文

摘要： export const aspectRatio = (width, height) => { height: 0, overflow: 'hidden', paddingBottom: `${(height / width) * 100}%`, } padding-bottom 值为百分比时，百分 阅读全文