html - 如何处理 Bootstrap 图像网格中的肖像图像

Question

我在创建带有肖像图像的 Bootstrap 网格时遇到了问题。当我使用肖像图像时，它看起来不太好。如果我只使用横向图像，它看起来应该是这样。我该如何解决这个问题？

代码如下:

<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> 

这里是 Fiddle

Answer 1

显然，bootstrap 会将响应式图像拉伸(stretch) 100% 宽，但不会限制它们的高度。因此，具有不同宽高比的图像最终将具有不同的高度(并且网格中断)。

显而易见的解决方案是在图像容器上设置一个固定高度，并在容器内约束+居中图像。

• Updated Fiddle #1
  固定容器高度 - 200 像素(注意宽图像在窄屏幕上会发生什么情况)

然而，这会产生另一个问题:容器的纵横比现在取决于屏幕宽度；在较宽的屏幕上它会变得更宽，而在窄屏幕上它会变得更高，有时 toooooo 与图像相比高。

我建议使用固定纵横比的容器，并在其中约束+居中图像。

@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>

• Updated Fiddle #2
  固定容器纵横比 - 4:3(容器随屏幕宽度按比例增长)