1 回答

TA貢獻1752條經驗 獲得超4個贊
.cardBootstrap 有自己的 flex 屬性,可以覆蓋.col-*
您需要將.card其添加為子 div .col-md-4,然后您將看到結果。
.col-md-4{ margin: 20px auto; } /* Or use my-* classes */
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" rel="stylesheet" />
<div class="container">
<div class="row card-deck">
<div class="col-md-4">
<div class="card">
<img class="card-image-top" src="https://via.placeholder.com/150" style="width:100%;height:350px;">
<div class="card-body">
<h3 class="card-title">Card Title</h3>
</div>
</div>
</div>
<div class="col-md-4">
<div class="card">
<img class="card-image-top" src="https://via.placeholder.com/150" style="width:100%;height:350px;">
<div class="card-body">
<h3 class="card-title">Card Title</h3>
</div>
</div>
</div>
<div class="col-md-4">
<div class="card">
<img class="card-image-top" src="https://via.placeholder.com/150" style="width:100%;height:350px;">
<div class="card-body">
<h3 class="card-title">Card Title</h3>
</div>
</div>
</div>
<div class="col-md-4">
<div class="card">
<img class="card-image-top" src="https://via.placeholder.com/150" style="width:100%;height:350px;">
<div class="card-body">
<h3 class="card-title">Card Title</h3>
</div>
</div>
</div>
<div class="col-md-4">
<div class="card">
<img class="card-image-top" src="https://via.placeholder.com/150" style="width:100%;height:350px;">
<div class="card-body">
<h3 class="card-title">Card Title</h3>
</div>
</div>
</div>
<div class="col-md-4">
<div class="card">
<img class="card-image-top" src="https://via.placeholder.com/150" style="width:100%;height:350px;">
<div class="card-body">
<h3 class="card-title">Card Title</h3>
</div>
</div>
</div>
</div>
</div>
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