# 常见投影

背景知识: box-shadow (opens new window)

① 无偏移投影

② 单侧投影

③ 邻边投影

④ 两侧投影

⑤ 1px投影

<style>
  .main-projection {
    width: 100%;
    padding: 20px 0 0 0;
  }
  .projection {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    align-items: center;
    padding-bottom: 20px;
    margin-bottom: 20px;
    border-bottom: 1px solid #eee;
  }
  .projection > div {
    width: 180px; height: 120px;
    background: rgba(180,160,120,.2);
  }
  .projection:not(:first-child:last-child) > div {
    border: 2px solid transparent;
    background-clip: content-box;
  }
  .projection:last-child {
    margin-bottom: 0;
    border-bottom: 0;
  }
  .projection:nth-of-type(1) > div {
    margin-left: -6px;
    box-shadow: 0 0 6px rgba(180,160,120,.8);
  }
  .projection:nth-of-type(2) > div {
    border-bottom: 0;
    box-shadow: 0px 6px 5px -5px rgba(180,160,120,.6);
  }
  .projection:nth-of-type(3) > div {
    border-right: 0;
    border-bottom: 0;
    box-shadow: 5px 5px 5px -4px rgba(180,160,120,.6);
  }
  .projection:nth-of-type(4) > div {
    border-right: 0;
    border-left: 0;
    box-shadow: 6px 0 5px -5px rgba(180,160,120,.6), -6px 0 5px -5px rgba(180,160,120,.6);
  }
  .projection:nth-of-type(5) > div {
    box-shadow: 0 0 0 1px rgba(180,160,120,.6);
  }
</style>
<template>
  <div class="main-projection">
    <div class="projection">
      <p>① 无偏移投影</p>
      <div></div>
    </div>
    <div class="projection">
      <p>② 单侧投影</p>
      <div></div>
    </div>
    <div class="projection">
      <p>③ 邻边投影</p>
      <div></div>
    </div>
    <div class="projection">
      <p>④ 两侧投影</p>
      <div></div>
    </div>
    <div class="projection">
      <p>⑤ 1px投影</p>
      <div></div>
    </div>
  </div>
</template>
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上次更新: 2023-10-28