unocss theme animation keyframes config

unocss 自定义动画关键帧配置,官方的文档更新是取消了对象方法keyframes得用字符串

留着备用下

<div class="-translate-y-1/2 animate-blink-input  bg-[#F02F2F] absolute left-3 top-1/2 w-0.5 h-5 "></div>

 theme: {
    animation: {
      keyframes: {
        'blink-input':
          '{50% {opacity: 0}}',
      },
      durations: {
        'blink-input': '1s',
      },
      timingFns: {
        'blink-input': 'step-start',
      },
      properties: {
        // transform-origin and backface-visibility here
      },
      counts: {
        'blink-input': 'infinite',
      },
    },
  },