Cộng đồng Hỏi & Đáp của Inflearn

PostItem.tsx

import React, { FunctionComponent } from 'react'
import styled from '@emotion/styled'
import { Link } from 'gatsby'

type PostItemProps = {
  title: string
  date: string
  categories: string[]
  summary: string
  thumbnail: string
  link: string
}

const PostItemWrapper = styled(Link)`
  display: flex;
  flex-direction: column;
  border-radius: 10px;
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.15);
  transition: 0.3s box-shadow;
  cursor: pointer;

  &:hover {
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
  }
`

const ThumbnailImage = styled.img`
  width: 100%;
  height: 200px;
  border-radius: 10px 10px 0 0;
  object-fit: cover;
`

const PostItemContent = styled.div`
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 15px;
`

const Title = styled.div`
  display: -webkit-box;
  overflow: hidden;
  margin-bottom: 3px;
  text-overflow: ellipsis;
  white-space: normal;
  overflow-wrap: break-word;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  font-size: 20px;
  font-weight: 700;
`

const Date = styled.div`
  font-size: 14px;
  font-weight: 400;
  opacity: 0.7;
`

const Category = styled.div`
  display: flex;
  flex-wrap: wrap;
  margin-top: 10px;
  margin: 10px -5px;
`

const CategoryItem = styled.div`
  margin: 2.5px 5px;
  padding: 3px 5px;
  border-radius: 3px;
  background: black;
  font-size: 14px;
  font-weight: 700;
  color: white;
`

const Summary = styled.div`
  display: -webkit-box;
  overflow: hidden;
  margin-top: auto;
  text-overflow: ellipsis;
  white-space: normal;
  overflow-wrap: break-word;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  font-size: 16px;
  opacity: 0.8;
`

const PostItem: FunctionComponent<PostItemProps> = function ({
  title,
  date,
  categories,
  summary,
  thumbnail,
  link,
}) {
  return (
    <PostItemWrapper to={link}>
      <ThumbnailImage src={thumbnail} alt="Post Item Image" />

      <PostItemContent>
        <Title>{title}</Title>
        <Date>{date}</Date>
        <Category>
          {categories.map(category => (
            <CategoryItem key={category}>{category}</CategoryItem>
          ))}
        </Category>
        <Summary>{summary}</Summary>
      </PostItemContent>
    </PostItemWrapper>
  )
}

export default PostItem

PostList.tsx

import React, { FunctionComponent } from 'react'
import styled from '@emotion/styled'
import PostItem from 'components/Main/PostItem'

const POST_ITEM_DATA = {
  title: 'Post Item Title',
  date: '2020.01.29.',
  categories: ['Web', 'Frontend', 'Testing'],
  summary:
    'Lorem ipsum dolor sit amet consectetur adipisicing elit. Provident repellat doloremque fugit quis rem temporibus! Maxime molestias, suntrem debitis odit harum impedit. Modi cupiditate harum dignissimos eos in corrupti!',
  thumbnail:
    'https://i.ytimg.com/vi/pmnv2J2fyJg/hqdefault.jpg?sqp=-oaymwEnCNACELwBSFryq4qpAxkIARUAAIhCGAHYAQHiAQoIGBACGAY4AUAB&rs=AOn4CLCIBVaOEdLTo8W392meul19B3RFeQ',
  link: 'https://www.google.co.kr/',
}

const PostListWrapper = styled.div`
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-gap: 20px;
  width: 768px;
  margin: 0 auto;
  padding: 50px 0 100px;
`

const PostList: FunctionComponent = function () {
  return (
    <PostListWrapper>
      <PostItem {...POST_ITEM_DATA} />
      <PostItem {...POST_ITEM_DATA} />
      <PostItem {...POST_ITEM_DATA} />
      <PostItem {...POST_ITEM_DATA} />
    </PostListWrapper>
  )
}

export default PostList

index.tsx

import React, { FunctionComponent } from 'react'
import styled from '@emotion/styled'
import GlobalStyle from 'components/Common/GlobalStyle'
import Footer from 'components/Common/Footer'
import CategoryList from 'components/Main/CategoryList'
import Introduction from 'components/Main/Introduction'

const CATEGORY_LIST = {
  All: 5,
  Web: 3,
  Mobile: 2,
}

const Container = styled.div`
  display: flex;
  flex-direction: column;
  height: 100vh;
`

const IndexPage: FunctionComponent = function () {
  return (
    <Container>
      <GlobalStyle />
      <Introduction />
      <CategoryList selectedCategory="Web" categoryList={CATEGORY_LIST} />
      <Footer />
    </Container>
  )
}

export default IndexPage

전 단계인 태그까지는 됐는데, 게시글 목록 부분 컴포넌트 구현하기부터 뭔가 잘 안 뜹니다.

게시글 썸네일 바꿔보고, 꺾쇠도 없애봤는데 별 반응이 없네요... 어느 부분을 놓친 건지, 더 확인할 부분이 있는지 알려주시면 감사드리겠습니다.