我在bootstrap卡div中有图像,它们位于col div
内
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" rel="stylesheet" />
<div class="container">
<div class="row">
<div class="col-md-8 col-lg-8 B">
<div class="card card-inverse" style="background-color: #333; border-color: #333;">
<img class="img-fluid" src="http://lorempicsum.com/rio/800/500/4" alt="Responsive image">
</div>
</div>
<div class="col-md-4 col-lg-4 row">
<div class="col-md-6 col-lg-6 B">
<div class="card card-inverse" style="background-color: #333; border-color: #333;">
<img class="img-fluid" src="http://lorempicsum.com/rio/800/500/4" alt="Responsive image">
</div>
</div>
<div class="col-md-6 col-lg-6 B">
<div class="card card-inverse" style="background-color: #333; border-color: #333;">
<img class="img-fluid" src="http://lorempicsum.com/rio/800/500/4" alt="Responsive image">
</div>
</div>
<div class="col-md-12">
<div class="card card-inverse" style="background-color: #333; border-color: #333;">
<img class="img-fluid" src="http://lorempicsum.com/rio/800/500/3" alt="Responsive image">
</div>
</div>
</div>
</div>
</div>
&#13;
我想在所有col div空间都有图像。 我怎么能实现这一目标?
如何扩展图像以填补我用黑线表示的空白
答案 0 :(得分:0)
如您所述,您只想消耗col div(左右空白区域)内的所有空间。
您需要做的是将padding-left: 15px; padding-right: 15px
的引导列的默认填充减少到0px
。它会对你有用。
有时你的样式会被引导样式重载。因此,在这种情况下,您必须使用带有CSS属性的关键字!important
来重载为该特定属性定义的所有其他CSS样式。
.zero-padding {
padding: 0px !important;
}
要强制图像使用col div中的所有空间,您必须使用以下CSS。
.fill-space {
height: 100%;
display: flex;
justify-content: center;
align-items: center;
overflow: hidden;
}
.fill-space img {
flex-shrink: 0;
min-width: 100%;
min-height: 100%;
}
为了强制右侧的图像将上面2幅图像的50%高度和50%的高度拍摄到下图中;你应该使用以下的CSS。
.half-height{
height: 50%;
}
.zero-padding {
padding: 0px !important;
}
.fill-space {
height: 100%;
display: flex;
justify-content: center;
align-items: center;
overflow: hidden;
}
.fill-space img {
flex-shrink: 0;
min-width: 100%;
min-height: 100%;
}
.half-height{
height: 50%;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" rel="stylesheet" />
<div class="container">
<div class="row">
<div class="col-md-8 col-lg-8 B">
<div class="card card-inverse" style="background-color: #333; border-color: #333;">
<img class="img-fluid" src="http://lorempicsum.com/rio/800/500/4" alt="Responsive image">
</div>
</div>
<div class="col-md-4 col-lg-4 row zero-padding">
<div class="col-md-6 col-lg-6 B zero-padding half-height">
<div class="card card-inverse fill-space" style="background-color: #333; border-color: #333;">
<img class="img-fluid" src="http://lorempicsum.com/rio/800/500/4" alt="Responsive image">
</div>
</div>
<div class="col-md-6 col-lg-6 B zero-padding half-height">
<div class="card card-inverse fill-space" style="background-color: #333; border-color: #333;">
<img class="img-fluid" src="http://lorempicsum.com/rio/800/500/4" alt="Responsive image">
</div>
</div>
<div class="col-md-12 zero-padding half-height">
<div class="card card-inverse fill-space" style="background-color: #333; border-color: #333;">
<img class="img-fluid" src="http://lorempicsum.com/rio/800/500/3" alt="Responsive image">
</div>
</div>
</div>
</div>
</div>
答案 1 :(得分:0)
过去,我使用了一些小的javascript来实现这一目标。隐藏图像但将其用作完整背景。
$(function() {
$('.full-image').each(function() {
var img = $(this).find('img');
$(this).css('background-image', 'url(' + img.attr('src') + ')');
img.css('visibility', 'hidden');
});
});
&#13;
.full-image-wrapper {
position: relative;
border-radius: 3px;
overflow: hidden;
min-height: 120px !important;
}
.full-image {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
background-size: cover;
background-position: center center;
background-repeat: no-repeat;
}
&#13;
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" rel="stylesheet" />
<div class="container">
<div class="row">
<div class="col-md-8 col-lg-8 B">
<div class="card card-inverse" style="background-color: #333; border-color: #333;">
<img class="img-fluid" src="http://lorempicsum.com/rio/800/500/4" alt="Responsive image">
</div>
</div>
<div class="col-md-4 col-lg-4 row">
<div class="col-md-6 col-lg-6 B full-image-wrapper">
<div class="full-image">
<img class="img-fluid" src="http://lorempicsum.com/rio/800/500/4" alt="Responsive image">
</div>
</div>
<div class="col-md-6 col-lg-6 B full-image-wrapper">
<div class="full-image">
<img class="img-fluid" src="http://lorempicsum.com/rio/800/500/4" alt="Responsive image">
</div>
</div>
<div class="col-md-12 full-image-wrapper">
<div class="full-image">
<img class="img-fluid" src="http://lorempicsum.com/rio/800/500/3" alt="Responsive image">
</div>
</div>
</div>
</div>
</div>
&#13;
如果没有JavaScript,这仍然有用。您可能需要做更多工作才能使移动/平板电脑视图达到最佳状态。我必须强制min-height来覆盖引导行为。