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HTML

CSS

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Babel includes JSX processing.

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HTML

              
                <div class="flex">
  <div class="flex-item">
    <h3>上边内阴影示例</h3>
    <div class="box boxshadow1"></div>
  </div>
  <div class="flex-item">
    <h3>右边内阴影示例</h3>
    <div class="box boxshadow2"></div>
  </div>
  <div class="flex-item">
    <h3>下边外阴影示例</h3>
    <div class="box boxshadow3"></div>
  </div>
  <div class="flex-item">
    <h3>右边外阴影示例</h3>
    <div class="box boxshadow4"></div>
  </div>
  <div class="flex-item">
    <h3>下边细线示例</h3>
    <div class="box boxshadow5"></div>
  </div>
</div>
              
            
!

CSS

              
                .flex{display:flex;flex-wrap:wrap;} 
.flex-item{margin-right:30px;}

.box {  background-color: #CCCCCC;  width: 200px; height: 200px;  }
.boxshadow1{ box-shadow:inset 0px 15px 10px -15px #000; }
.boxshadow2{ box-shadow:inset -15px 0px  10px -15px #000;}
.boxshadow3{box-shadow:0px 12px 8px -12px #000; border-radius:10px; }
.boxshadow4{box-shadow:3px 0 8px -4px #000;}
.boxshadow5{ box-shadow: inset 0px -1px 0px 0px rgb(0, 0, 0) ;}

              
            
!

JS

              
                
              
            
!
999px

Console