[英]How to fill image at 100% height of parent and save the ratio (width:height of image)?
代碼沙箱: https : //codesandbox.io/s/polished-browser-d5qrr? file =/ index.html: 0-1902& fbclid = IwAR3LXPTNfumRyitqed-xzOJHEeq5PBTuLnU-V0LH- 4UB8QIbPdb_hZKL1G0
如何將圖像填充到父 div 的 100% 高度? 比例寬度:高度應保持不變。
這是您問題的可能解決方案,希望對您有所幫助
<!DOCTYPE HTML>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.5.3/dist/css/bootstrap.min.css"
integrity="sha384-TX8t27EcRE3e/ihU7zmQxVncDAy5uIKz4rEkgIXeMed4M0jlfIDPvg6uqKI2xXr2" crossorigin="anonymous" />
<style>
html,
body {
height: 100%;
}
.custom-container {
position: relative;
max-width: 800px;
max-height: 400px;
width: 70%;
height: 60%;
border: 2px solid red;
}
.mid {
border: 2px solid green;
}
.flex-grow-1 {
position: relative;
min-height: 100px;
max-height: 100%;
}
.img-container {
position: relative;
height: 100%;
}
.flex-grow-1,
.img-container,
img {
width: 100%;
max-height: 300px;
object-fit: cover;
}
div>img {
display: block;
position: absolute;
top: 50%;
left: 50%;
min-height: 100%;
min-width: 100%;
transform: translate(-50%, -50%);
}
</style>
<title>Document</title>
</head>
<body>
<div class="custom-container d-flex flex-column">
<div class="top">
<h1>Nadpis</h1>
</div>
<div class="mid flex-grow-1">
<div class="img-container">
<img src="https://external-content.duckduckgo.com/iu/?u=http%3A%2F%2Fhtml.com%2Fwp-content%2Fuploads%2Fvery-large-flamingo.jpg&f=1&nofb=1"
alt="img" />
</div>
</div>
<div class="bottom">
<button class="btn btn-primary">Dalej</button>
</div>
</div>
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js"
integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj"
crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@4.5.3/dist/js/bootstrap.bundle.min.js"
integrity="sha384-ho+j7jyWK8fNQe+A12Hb8AhRq26LrZ/JpcUGGOn+Y7RsweNrtN/tE3MoK7ZeZDyx"
crossorigin="anonymous"></script>
</body>
</html>
您希望 img 填充其具有類 .img-container 的容器的高度。
目前您已將 img 元素的寬度和高度設置為 100px。 這給出了一個小圖像,如果原始圖像不是方形的,它可能會失真。
要使圖像充滿整個高度但保持其原始縱橫比,請將 .img-container img CSS 設置替換為:
.img-container img {
height: 100%;
width: auto;
}
例如,如果您的某些圖像更像是橫向而不是縱向,這可能不是您想要的。 根據與容器相比的圖像縱橫比,您可能會在側面截斷圖像。
如果您想確保始終准確顯示整個圖像,請調查object-fit: contain
如果比例不匹配,這可能會給您頂部和底部或兩側的空白區域。
如果您想始終填充容器,但沒有圖像失真,請調查object-fit: cover
。 如果需要,這將切斷頂部和底部或側面。 您還需要查看定位,通常 center 會做需要的事情,但可能不適用於您的所有圖像。
這是正確答案
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.5.3/dist/css/bootstrap.min.css" integrity="sha384-TX8t27EcRE3e/ihU7zmQxVncDAy5uIKz4rEkgIXeMed4M0jlfIDPvg6uqKI2xXr2" crossorigin="anonymous">
<style>
html,body{
height: 100%;
}
.custom-container{
max-width:800px;
max-height:400px;
width:70%;
height:60%;
border: 2px solid red;
}
.mid{
border:2px solid green;
min-height:0;
}
img{
max-height:100%;
max-width: 100%;;
}
#problem{
background-color: red;
}
</style>
<title>Document</title>
</head>
<body>
<div class="custom-container d-flex flex-column">
<div class="top">
<h1>Nadpis</h1>
</div>
<div class="mid flex-grow-1 d-flex">
<div id="problem" class="w-100" >
<img src="https://external-content.duckduckgo.com/iu/?u=http%3A%2F%2Fhtml.com%2Fwp-content%2Fuploads%2Fvery-large-flamingo.jpg&f=1&nofb=1" alt="img">
</div>
</div>
<div class="bottom">
<button class="btn btn-primary">Dalej</button>
</div>
</div>
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@4.5.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ho+j7jyWK8fNQe+A12Hb8AhRq26LrZ/JpcUGGOn+Y7RsweNrtN/tE3MoK7ZeZDyx" crossorigin="anonymous"></script>
</body>
</html>
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