CSSで画像を領域内に収める
'19.02.02.outer { position: relative; width:320px; height:180px; margin:1em 0; border:1px solid #ccc; background-color:#eee; } .inner { position:absolute; top:0; bottom:0; left:0; right:0; width:auto; height:auto; max-width:100%; max-height:100%; margin:auto; }
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