スケールの2番目のホバートランジション<img>タグが正しく機能しない

Question

親とその子に2種類の異なる効果を出そうとしています。

main#wrap > .page > .group > section.large-poster > .image-area { 
      position: absolute; 
      width: 100%; 
      height: 100vh; 
      opacity: .265; 
      transition: 4s ease; 
} 

     main#wrap > .page > .group > section.large-poster:hover > .image-area { 
      opacity: 1; 
    } 

これは正常に動作しますが、私のように、ゆっくりとそれを拡張できるようにしたい：私はこれを使用して1に不透明度を変更しています

HTML

<section class="col large-poster"> 
       <div class="image-area"> 
         <img class="img-cover" src="/path.png" alt="Maven" /> 
       </div> 
       <div class="poster-cover"> 
        <div> 
         <h1> 
          Item 
          </h1> 
        </div> 
       </div> 
</section> 

不透明TRANSITION

まあ、私のCSSは:hoverスケールのために動作していないようです。不透明度フェードと同じロジックで構築されています。

スケール遷移

main#wrap > .page > .group > section.large-poster > .image-area > img { 
     margin-top: 0; 
     margin-left: -752px; 
     width: auto; 
     /* height: auto */ 
     height: 1000px; 
     transform:scale(1,1); 
     transition: 8s all; 
    } 

    main#wrap > .page > .group > section.large-poster:hover > image-area > img { 
     transform:scale(1.2,1.2) 
    } 

---

jdFiddle link

---

html { 
 
    font-size: 62.5%; 
 
    font-family: sans-serif; 
 
    box-sizing: border-box; 
 
    -webkit-text-size-adjust: 100%; 
 
    -moz-text-size-adjust: 100%; 
 
    -ms-text-size-adjust: 100%; 
 
} 
 

 
body { 
 
    padding: 0; 
 
    margin: 0 auto; 
 
} 
 

 
.container:after, .group:before, .group:after, .clearfix:before, .clearfix:after, .row:before, .row:after { 
 
    content: '\0020'; 
 
    display: block; 
 
    overflow: hidden; 
 
    visibility: hidden; 
 
    width: 0; 
 
    height: 0; 
 
} 
 

 
.container:after, .row:after, .clearfix:after, .group:after { 
 
    clear: both; 
 
} 
 

 
.row, .clearfix, .group { 
 
    zoom: 1; 
 
} 
 

 
body, html { 
 
    height: 100%; 
 
} 
 

 
body { 
 
    color: #000; 
 
    font-weight: 300; 
 
    font-size: 16px; 
 
    font-size: 1.6rem; 
 
    line-height: 1.5; 
 
    background: #fff 
 
} 
 

 
img:not(.img-cover), 
 
svg { 
 
    display: block; 
 
    max-width: 100%; 
 
    height: auto 
 
} 
 

 
.col { 
 
    width: 25%; 
 
    float:left; 
 
    display:block 
 
} 
 

 
main { 
 
    display: block; 
 
    background: black 
 
} 
 

 
    main#wrap > .page > .group > section.large-poster { 
 
     min-height: 892px; 
 
     height: 100vh; 
 
     position: relative; 
 
     overflow: hidden; 
 
     display: flex; 
 
     align-items: center; 
 
     justify-content: center; 
 
    } 
 

 
     main#wrap > .page > .group > section.large-poster > .image-area { 
 
      position: absolute; 
 
      width: 100%; 
 
      height: 100vh; 
 
      opacity: .265; 
 
      transition: 4s ease; 
 
     } 
 

 
     main#wrap > .page > .group > section.large-poster:hover > .image-area { 
 
      opacity: 1; 
 
     } 
 

 
     main#wrap > .page > .group > section.large-poster > .image-area > img { 
 
      margin-top: 0; 
 
      margin-left: -752px; 
 
      width: auto; 
 
      /* height: auto */ 
 
      height: 1000px; 
 
      transform:scale(1,1); 
 
      transition: 8s all; 
 
     } 
 

 
     main#wrap > .page > .group > section.large-poster:hover > image-area > img { 
 
      transform:scale(1.2,1.2) 
 
     } 
 

 
     main#wrap > .page > .group > section.large-poster > .poster-cover { 
 
      position: relative; 
 
      z-index: 2; 
 
     } 
 

 
      main#wrap > .page > .group > section.large-poster > .poster-cover > div { 
 
       margin: 0 40px; 
 
       text-align: center 
 
      } 
 

 
       main#wrap > .page > .group > section.large-poster > .poster-cover > div > h1 { 
 
        text-transform: uppercase; 
 
        color: #fff; 
 
        font-size: 25px; 
 
        font-size: 2.455rem; 
 
        line-height: 1.2; 
 
       }

<main id="wrap"> 
 
     <div class="page"> 
 
      <div class="group"> 
 
       <section class="col large-poster"> 
 
         <div class="image-area"> 
 
           <img class="img-cover" src="https://wallpapercave.com/wp/k15SYSI.jpg" alt="Maven" /> 
 
         </div> 
 
         <div class="poster-cover"> 
 
          <div> 
 
           <h1> 
 
            First 
 
           </h1> 
 
          </div> 
 
         </div> 
 
       </section> 
 
       <section class="col large-poster"> 
 
         <div class="image-area"> 
 
           <img class="img-cover" src="https://wallpapercave.com/wp/k15SYSI.jpg" alt="Maven" /> 
 
         </div> 
 
         <div class="poster-cover"> 
 
          <div> 
 
           <h1> 
 
            Second Item 
 
           </h1> 
 
          </div> 
 
         </div> 
 
       </section> 
 
       <section class="col large-poster"> 
 
         <div class="image-area"> 
 
           <img class="img-cover" src="https://wallpapercave.com/wp/k15SYSI.jpg" alt="Maven" /> 
 
         </div> 
 
         <div class="poster-cover"> 
 
          <div> 
 
           <h1> 
 
            Third Item 
 
           </h1> 
 
          </div> 
 
         </div> 
 
       </section> 
 
       <section class="col large-poster"> 
 
         <div class="image-area"> 
 
           <img class="img-cover" src="https://wallpapercave.com/wp/k15SYSI.jpg" alt="Maven" /> 
 
         </div> 
 
         <div class="poster-cover"> 
 
          <div> 
 
           <h1> 
 
            Last Item 
 
           </h1> 
 
          </div> 
 
         </div> 
 
       </section> 
 
      </div> 
 
     </div> 
 
    </main>

Answer 1

あなただけのDOを置くことを忘れています.image-エリアと問題のように

トン

が解決されます： ""

main#wrap > .page > .group > section.large-poster:hover > .image-area > img { 
     transform:scale(1.2,1.2) 
    }