行中的Bootstrap Vertical Center内容

Question

我在Bootstrap 3中有一个简单的表格式布局(它是一个"属性网格"):

<div class="row">
  <div class="col-md-3">
    <div id="propGrid">
      <div class="row pgTable">
        <div class="col col-md-12">
          <div class="row pgGroupRow">
            <div class="col col-md-12 pgGroupCell">Editor</div>
          </div>
          <div class="row pgRow">
            <div class="col col-md-5 pgCell">Font<span class="pgTooltip" title="The font editor to use">[?]</span></div>
            <div class="col col-md-7 pgCell"><input type="text" id="pg0font" value="Consolas" <="" input=""></div>
          </div>
          <div class="row pgRow">
            <div class="col col-md-5 pgCell">Font size</div>
            <div class="col col-md-7 pgCell"><span class="ui-spinner ui-corner-all ui-widget ui-widget-content"><input type="text" id="pg0fontSize" value="14" style="width:50px" aria-valuemin="0" aria-valuemax="20" aria-valuenow="14" autocomplete="off" class="ui-spinner-input" role="spinbutton"><a tabindex="-1" aria-hidden="true" class="ui-spinner-button ui-spinner-up ui-corner-tr"></a><a tabindex="-1" aria-hidden="true" class="ui-spinner-button ui-spinner-down ui-corner-br"></a></span></div>
          </div>
          <div class="row pgRow">
            <div class="col col-md-5 pgCell">Font color</div>
            <div class="col col-md-7 pgCell"><input type="text" id="pg0fontColor" value="#a3ac03" <="" input=""></div>
          </div>
          <div class="row pgGroupRow">
            <div class="col col-md-12 pgGroupCell">Plugins</div>
          </div>
          <div class="row pgRow">
            <div class="col col-md-5 pgCell">jQuery<span class="pgTooltip" title="Whether or not to include jQuery on the page">[?]</span></div>
            <div class="col col-md-7 pgCell"><input type="checkbox" id="pg0jQuery" value="jQuery" checked=""></div>
          </div>
          <div class="row pgRow">
            <div class="col col-md-5 pgCell">modernizr<span class="pgTooltip" title="Whether or not to include modernizr on the page">[?]</span></div>
            <div class="col col-md-7 pgCell"><input type="checkbox" id="pg0modernizr" value="modernizr"></div>
          </div>
          <div class="row pgRow">
            <div class="col col-md-5 pgCell">Framework<span class="pgTooltip" title="Whether to include any additional framework">[?]</span></div>
            <div class="col col-md-7 pgCell"><select id="pg0framework"><option value="None">None</option><option value="angular" selected="">AngularJS</option><option value="backbone">Backbone.js</option></select></div>
          </div>
          <div class="row pgGroupRow">
            <div class="col col-md-12 pgGroupCell">Other</div>
          </div>
          <div class="row pgRow">
            <div class="col col-md-5 pgCell">iHaveNoMeta</div>
            <div class="col col-md-7 pgCell"><input type="text" id="pg0iHaveNoMeta" value="Never mind..." <="" input=""></div>
          </div>
          <div class="row pgRow">
            <div class="col col-md-5 pgCell">I am read only</div>
            <div class="col col-md-7 pgCell"><label for="pg0iAmReadOnly" title="Label types use a label tag for read-only properties">I am a label which is not editable</label></div>
          </div>
        </div>
      </div>
    </div>
  </div>
</div>

我一直试图将左列的内容垂直居中于右列的高度,但没有成功.

请访问http://codepen.io/anon/pen/rrvNaV查看代码笔, 然后查看最后一行.

我已经尝试调整填充,但由于右列的内容具有可变高度,这似乎不是一个好的解决方案.我通常使用的线高调整似乎因类似原因而失败.

关于如何垂直居中两列内容的任何想法,给定它的行高(行高由列或特定行中的内容高度决定)？

Answer 1

垂直居中的基于浮动的内容是非常有问题的.有一些黑客可以做到这一点(使用转换或负底边距),但使用显示表或flexbox进行布局要容易得多.

像这样将行更改为flexbox:

.pgRow {
  background:yellow;
  display: flex;  /* make the row a flex container */
  align-items: center; /* vertically center each flex item in the container */
}

一定要删除height从.va!通常,您不应该在CSS中设置容器的高度; 这样做只会引入一大堆其他问题.

有关更多选项,请访问http://howtocenterincss.com/.要了解flexbox,请查看有关CSS Tricks的这篇文章.要真正掌握所有这些事情以及它们如何协同工作(无耻的插件警报),请查看我的书.