我正在试验Bootstrap 4,并在卡片列中有一张卡片:
<div class="card-columns">
<div class="card">
<div class="card-block">
<h4 class="card-title">iPhone 5S</h4>
<h6 class="card-subtitle text-muted">Rp. 8.999.999</h6>
</div>
<img data-src="holder.js/100%x200" alt="100%x200" data-holder-rendered="true" style="height: 200px; width: 100%; display: block;">
<div class="card-block">
<p class="card-text">Apple iPhone 5S adalah handphone tercanggih dari Apple. Dapatkan
dengan harga khas dari Shopoza! Nikmati cicilan 0%
</p>
<div class="btn-group open">
<a href="#" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true">Add to cart</a>
<div class="dropdown-menu" style="
/* min-height: 100%; */
/* overflow: auto; */
/* max-height: 100%; */
/* height: 100%; */
">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
</div>
</div>
<a href="#" class="btn btn-secondary card-link">Quick checkout</a>
</div>
<!-- card block -->
</div>
<!-- card -->
</div>
卡片列本身位于容器内,行中有一行col-sm-12
列。
这是显示的内容:
Button menu displayed into half
这里有什么问题? dropdown-menu
div类具有绝对定位。
答案 0 :(得分:1)
您正在使用示例中的.card-column
布局,该布局将使用column
CSS属性。 column-count
布局中的默认.card-column
似乎的值为3
。
即使.dropdown-menu
的{{1}}值为position
,也没有足够的空间让absolute
显示在第一列,因为它不高够了。
这就是为什么它出现在下一栏的顶部。
解决此问题的一种简单方法是增加.dropdown-menu
元素的margin-bottom
,但如果您希望减少.card
,则会导致列之间出现间隙在较小的屏幕尺寸上,当您向column-count
添加更多项目时,您将不得不进一步增加列高,因此这不是一个好的解决方案。
.dropdown-menu
@import url('https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha/css/bootstrap.min.css');
.card-columns {
-webkit-column-count: 1;
-moz-column-count: 1;
column-count: 1;
-webkit-column-gap: 0;
-moz-column-gap: 0;
column-gap: 0;
text-align: center;
}
.card {
margin-bottom: 3.75rem;
max-width: 22.5rem;
}
@media screen and (min-width: 34em) {
.card-columns {
-webkit-column-count: 1;
-moz-column-count: 1;
column-count: 1;
-webkit-column-gap: 0;
-moz-column-gap: 0;
column-gap: 0;
}
.card {
max-width: 22.5rem;
}
}
@media screen and (min-width: 48em) {
.card-columns {
-webkit-column-count: 2;
-moz-column-count: 2;
column-count: 2;
-webkit-column-gap: .55rem;
-moz-column-gap: .55rem;
column-gap: .55rem;
text-align: left;
}
}
@media screen and (min-width: 62em) {
.card-columns {
-webkit-column-count: 3;
-moz-column-count: 3;
column-count: 3;
}
}
更好的解决方案是使用<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha/js/bootstrap.min.js"></script>
<div class="container">
<div class="row">
<div class="card-columns">
<div class="card">
<div class="card-block">
<h4 class="card-title">iPhone 5S</h4>
<h6 class="card-subtitle text-muted">Rp. 8.999.999</h6>
</div>
<img src="http://placehold.it/380x200" class="img-responsive"/>
<div class="card-block">
<p class="card-text">Apple iPhone 5S adalah handphone tercanggih dari Apple. Dapatkan
dengan harga khas dari Shopoza! Nikmati cicilan 0%
</p>
<div class="btn-group">
<a href="#" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Add to cart</a>
<div class="dropdown-menu">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
</div>
</div>
<a href="#" class="btn btn-secondary card-link">Quick checkout</a>
</div>
<!-- card block -->
<!-- card -->
</div>
<div class="card">
<div class="card-block">
<h4 class="card-title">iPhone 5S</h4>
<h6 class="card-subtitle text-muted">Rp. 8.999.999</h6>
</div>
<img src="http://placehold.it/380x200" class="img-responsive"/>
<div class="card-block">
<p class="card-text">Apple iPhone 5S adalah handphone tercanggih dari Apple. Dapatkan
dengan harga khas dari Shopoza! Nikmati cicilan 0%
</p>
<div class="btn-group">
<a href="#" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Add to cart</a>
<div class="dropdown-menu">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
</div>
</div>
<a href="#" class="btn btn-secondary card-link">Quick checkout</a>
</div>
<!-- card block -->
<!-- card -->
</div>
<div class="card">
<div class="card-block">
<h4 class="card-title">iPhone 5S</h4>
<h6 class="card-subtitle text-muted">Rp. 8.999.999</h6>
</div>
<img src="http://placehold.it/380x200" class="img-responsive"/>
<div class="card-block">
<p class="card-text">Apple iPhone 5S adalah handphone tercanggih dari Apple. Dapatkan
dengan harga khas dari Shopoza! Nikmati cicilan 0%
</p>
<div class="btn-group">
<a href="#" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Add to cart</a>
<div class="dropdown-menu">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
</div>
</div>
<a href="#" class="btn btn-secondary card-link">Quick checkout</a>
</div>
<!-- card block -->
<!-- card -->
</div>
</div>
</div>
</div>
布局,.card-deck
设置为display
。这是一个例子。
flex
@import url('https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha/css/bootstrap.min.css');
.card-deck {
display: flex;
flex-flow: row wrap;
justify-content: center;
}
.card-deck .card {
flex: 0 1 22.5rem;
margin: 0 .25rem .50rem;
}