回答編集履歴
1
少しコンパクトにしました。
    
        answer	
    CHANGED
    
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         @@ -3,7 +3,7 @@ 
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            .image {
         
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              width: 100px;
         
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              height: 100px;
         
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              position: relative;
         
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              /* position: relative; */
         
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              background: #c33;
         
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              display: flex;
         
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              justify-content: center;
         
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         @@ -11,14 +11,14 @@ 
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            }
         
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            img {
         
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              /*
         
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              display: block;
         
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              position:  
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              position: absolute;
         
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              flex-shrink: 0;
         
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              /*
         
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              top: 50%;
         
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              left: 50%;
         
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              transform: translate3d(-50%, -50%, 0);
         
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              */
         
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              opacity: 0.5;
         
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              flex-shrink: 0;
         
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            }
         
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            ```
         
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