我不确定你所说的Zurb基金会中的流体模式是什么意思。
关于从4列到3列的布局从大型切换到移动,我总是把可见性类放在行中。
<div class="row hide-for-small">
<div class="large-3 columns"></div>
<div class="large-3 columns"></div>
<div class="large-3 columns"></div>
<div class="large-3 columns"></div>
</div>
<div class="row hide-for-medium-up">
<div class="small-4 columns"></div>
<div class="small-4 columns"></div>
<div class="small-4 columns"></div>
</div>
否则,正常行为就是堆叠。你可以从4列到3列,将其中一列拉伸12宽,如下所示:
<div class="row">
<div class="large-3 small-4 columns">Lorem ipsum dolor sit amet.</div>
<div class="large-3 small-4 columns">Eius, ex vitae consequuntur nulla!</div>
<div class="large-3 small-4 columns">Ipsam, assumenda ex non architecto.</div>
<div class="large-3 small-12 columns">Tempore ipsa provident deserunt vel.</div>
</div>
或
<div class="row">
<div class="large-3 small-12 columns">Tempore ipsa provident deserunt vel.</div>
<div class="large-3 small-4 columns">Lorem ipsum dolor sit amet.</div>
<div class="large-3 small-4 columns">Eius, ex vitae consequuntur nulla!</div>
<div class="large-3 small-4 columns">Ipsam, assumenda ex non architecto.</div>
</div>