antd-tiny-vue/components/style/motion/collapse.ts

import type { AliasToken, GenerateStyle } from '../../theme/internal'
import type { TokenWithCommonCls } from '../../theme/util/genComponentStyleHook'

const genCollapseMotion: GenerateStyle<TokenWithCommonCls<AliasToken>> = (
  token
) => ({
  [token.componentCls]: {
    // For common/openAnimation
    [`${token.antCls}-motion-collapse-legacy`]: {
      overflow: 'hidden',

      '&-active': {
        transition: `height ${token.motionDurationMid} ${token.motionEaseInOut},
        opacity ${token.motionDurationMid} ${token.motionEaseInOut} !important`
      }
    },

    [`${token.antCls}-motion-collapse`]: {
      overflow: 'hidden',
      transition: `height ${token.motionDurationMid} ${token.motionEaseInOut},
        opacity ${token.motionDurationMid} ${token.motionEaseInOut} !important`
    }
  }
})

export default genCollapseMotion