如何在bootstrap图像网格中处理肖像图像

Question

我在创建带有肖像图像的自举网格时遇到了问题.当我使用肖像图像时,它看起来不太好.如果我只使用风景图像,它看起来应该是这样.我该如何解决这个问题？

这是代码:

<div class="col-md-3 col-sm-4 col-xs-6 thumb">
   <div class="thumbnail" href="#">
      <a href="#"><img class="img-responsive" src="http://placehold.it/400x266" alt=""></a>
      <div class="caption">                                                
        <a href="#" class="btn btn-shopping btn-responsive"><i class="glyphicon glyphicon-shopping-cart"></i></a>
      </div>
   </div>
</div> 

<div class="col-md-3 col-sm-4 col-xs-6 thumb">
   <div class="thumbnail" href="#">
      <a href="#"><img class="img-responsive" src="http://placehold.it/400x266" alt=""></a>
      <div class="caption">                                                
        <a href="#" class="btn btn-shopping btn-responsive"><i class="glyphicon glyphicon-shopping-cart"></i></a>
      </div>
   </div>
</div> 

<div class="col-md-3 col-sm-4 col-xs-6 thumb">
   <div class="thumbnail" href="#">
      <a href="#"><img class="img-responsive" src="http://placehold.it/266x400" alt=""></a>
      <div class="caption">                                                
        <a href="#" class="btn btn-shopping btn-responsive"><i class="glyphicon glyphicon-shopping-cart"></i></a>
      </div>
   </div>
</div> 

 <div class="col-md-3 col-sm-4 col-xs-6 thumb">
   <div class="thumbnail" href="#">
      <a href="#"><img class="img-responsive" src="http://placehold.it/175x266" alt=""></a>
      <div class="caption">                                                
        <a href="#" class="btn btn-shopping btn-responsive"><i class="glyphicon glyphicon-shopping-cart"></i></a>
      </div>
   </div>
</div> 

这是小提琴

Answer 1

显然,bootstrap将响应图像拉伸100%但不会限制它们的高度.因此,具有不同宽高比的图像将以不同的高度(和网格中断)结束.

显而易见的解决方案是在图像容器上设置固定高度,并将图像约束+居中在容器内.

• 更新小提琴#1
  固定容器高度 - 200px(注意窄屏幕上宽图像会发生什么)

但是,这会产生另一个问题:容器的纵横比现在取决于屏幕宽度; 在更宽的屏幕上它会变得更宽,在狭窄的屏幕上它会变得更高,有时候与图像相比太高了.

我建议使用固定宽高比容器并将图像约束+居中.

@import url("http://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css");

.thumbnail {
  display: block;
  padding-bottom: 100%;
  position: relative;
}
.thumbnail > .img-responsive {
  max-width: 100%;
  max-height: 100%;
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  margin: auto;
}

<div class="container-fluid">
  <div class="row">
    <div class="col-lg-12">
      <h1 class="page-header">Thumbnail Gallery (Square Container)</h1>
    </div>
    <div class="col-lg-3 col-md-4 col-xs-6 thumb">
      <a class="thumbnail" href="#"><img class="img-responsive" src="http://placehold.it/400x300" alt=""></a>
    </div>
    <div class="col-lg-3 col-md-4 col-xs-6 thumb">
      <a class="thumbnail" href="#"><img class="img-responsive" src="http://placehold.it/300x400" alt=""></a>
    </div>
    <div class="col-lg-3 col-md-4 col-xs-6 thumb">
      <a class="thumbnail" href="#"><img class="img-responsive" src="http://placehold.it/400x300" alt=""></a>
    </div>
    <div class="col-lg-3 col-md-4 col-xs-6 thumb">
      <a class="thumbnail" href="#"><img class="img-responsive" src="http://placehold.it/300x400" alt=""></a>
    </div>
    <div class="col-lg-3 col-md-4 col-xs-6 thumb">
      <a class="thumbnail" href="#"><img class="img-responsive" src="http://placehold.it/640x360" alt=""></a>
    </div>
    <div class="col-lg-3 col-md-4 col-xs-6 thumb">
      <a class="thumbnail" href="#"><img class="img-responsive" src="http://placehold.it/400x300" alt=""></a>
    </div>
    <div class="col-lg-3 col-md-4 col-xs-6 thumb">
      <a class="thumbnail" href="#"><img class="img-responsive" src="http://placehold.it/600x200" alt=""></a>
    </div>
    <div class="col-lg-3 col-md-4 col-xs-6 thumb">
      <a class="thumbnail" href="#"><img class="img-responsive" src="http://placehold.it/400x300" alt=""></a>
    </div>
    <div class="col-lg-3 col-md-4 col-xs-6 thumb">
      <a class="thumbnail" href="#"><img class="img-responsive" src="http://placehold.it/640x360" alt=""></a>
    </div>
    <div class="col-lg-3 col-md-4 col-xs-6 thumb">
      <a class="thumbnail" href="#"><img class="img-responsive" src="http://placehold.it/200x600" alt=""></a>
    </div>
    <div class="col-lg-3 col-md-4 col-xs-6 thumb">
      <a class="thumbnail" href="#"><img class="img-responsive" src="http://placehold.it/400x300" alt=""></a>
    </div>
    <div class="col-lg-3 col-md-4 col-xs-6 thumb">
      <a class="thumbnail" href="#"><img class="img-responsive" src="http://placehold.it/200x200" alt=""></a>
    </div>
  </div>
</div>

• 更新小提琴#2
  固定容器长宽比 - 4:3(容器与屏幕宽度成比例增长)