目标子元素样式的组件

Question

我正在尝试通过nth- child(2)将ColorBox元素作为的子元素来更改元素的背景颜色，ImgGrid但我似乎无法使其正常工作，我尝试了使用不同元素的多种变体，但似乎没有任何效果

如果我不尝试定位nth-child元素，这将更改背景颜色

const ImgGrid = styled.div`
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  ${ColorBox} {
    background: #ff00ff;
  }
`

我怎样才能针对nth-child(2)中的 ColorBox元素？

import React from 'react'
import styled from 'styled-components'
// import Img from '../../atoms/Img'
import { array, bool } from 'prop-types'

const Wrap = styled.div`
  padding: 20px 0;
`

const BoxWrap = styled.div`
  position: relative;
  border: 1px solid #000;
  height: auto;
  padding: 20px;
`

const Title = styled.div`
  position: absolute;
  display: flex;
  align-items: center;
  top: -20px;
  left: 50%;
  -webkit-transform: translateX(-50%);
  transform: translateX(-50%);
  height: 40px;
  background: #f6f6f6;
  padding: 10px;
`

const BoxInner = styled.div`
  width: 100%;
  height: 100%;
`

const ColorBox = styled.div`
  height: 60px;
  width: 100%;
  background: #FFD700;
`

const ImgCell = styled.div`
  flex: 0 0 25%;
  padding: 5px;
`

const ImgGrid = styled.div`
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  &:nth-child(2) ${ColorBox} {
    background: #ff00ff;
  }
`

const ImgCellInner = styled.div`
  position: relative;
`

// const ImgText = styled.div`
//   position: absolute;
//   bottom: 0;
//   left: 0;
//   padding: 5px;
//   width: 100%;
//   background: rgba(0,0,0,0.7);
//   color: #fff;
// `


const ImgWrap = styled.div`
  width: 100%;
`

const ColorWrap = styled.div`

`

const Filter = ({ filterData, color }) => (
  <Wrap>
    <BoxWrap>
      <Title>
        For Women
      </Title>
      <BoxInner>
        <ImgGrid>
          {filterData.map(filter =>
            <ImgCell>
              <ImgCellInner>
                <ImgWrap>
                  {color &&
                  <ColorWrap>
                    <ColorBox />
                    {filter.text}
                  </ColorWrap>
                  }
                </ImgWrap>
              </ImgCellInner>
            </ImgCell>,
          )}
        </ImgGrid>
      </BoxInner>
    </BoxWrap>
  </Wrap>
)

/* eslint-disable*/
Filter.propTypes = {
  filterData: array,
  color: bool,
}

Filter.defaultProps = {
  filterData: array,
  color: bool,
}

export default Filter

Answer 1

我可以假设您的代码无法正常工作，因为＆：nth-​​child（2）意味着您选择的是ImgGrid，它本身就是第二个孩子。尝试将ImgCell指定为nth-
child（2）：

const ImgGrid = styled.div`
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  ${ImgCell}:nth-child(2) ${ColorBox} {
    background: #ff00ff;
  }
`

我不确定范围，所以可能您需要在使用&之前：

const ImgGrid = styled.div`
      display: flex;
      flex-wrap: wrap;
      flex-direction: row;
      & ${ImgCell}:nth-child(2) ${ColorBox} {
        background: #ff00ff;
      }
    `