divを100％幅で縦に並べ、画面上にpadding-bottomを定義するにはどうすればいいですか？

Question

私は以下のdivを持っています。

.div { 
width:100%; 
padding-bottom:20%; 
background-color:blue; 
} 

<div class="div"></div> 

今縦これは、Webページのまさに中心にDIVが、満足のいくものを見つけることができませんでした修正する方法を見つけることながら、私は長い間しようとしています。この完全に反応するdivは、ウェブページを上下にスクロールするときに移動してはならないことを明確にするため、ウェブページの中心の上下に同じ大きさのスペースで固定する必要があります。誰も助けることができますか？

Answer 1

スクロールを開始するときにその位置を保持するには、position: fixed;を指定する必要があります。次に、上部と下部を20％にして、エッジから20％離してください。

body { 
 
    background-color: red; 
 
    margin: 0; 
 
} 
 
div { 
 
    position: fixed; 
 
    top: 20%; 
 
    bottom: 20%; 
 
    width:100%; 
 
    padding-bottom:20%; 
 
    background-color:blue; 
 
}

<div></div>

Answer 2

あなたは、ビューポートに中央にvhを使用することができます。

あなたのdivからpaddingを削除し、ウィットにmargin-top: 20vh

を使用します。

html { 
 
    height: 100%; 
 
} 
 

 
body { 
 
    margin: 0; 
 
    border: 0; 
 
    padding: 0; 
 
    height: 100%; 
 
    background-color: #000; 
 
    overflow: hidden; 
 
} 
 

 
.content { 
 
    margin-top: 20vh; 
 
    height: 60%; 
 
    background-color: #fff; 
 
    overflow: auto; 
 
} 
 

 
.content-text { 
 
    font-size: 13px; 
 
    font-family: "Segoe UI", Aria, sans-serif; 
 
    padding: 1em; 
 
}

<div class="content"> 
 
    <div class="content-text"> 
 
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    </div> 
 
</div>