相关疑难解决方法(0)

我希望每个单元格之间有4个左右的像素空间.我希望灰色标题有空格而不是灰色块.我试过玩游戏(background-clip:padding-box; padding:14px; margin等),但无法弄清楚如何在div表格中的单元格之间放置几个像素.我该怎么做呢？

演示问题http://jsfiddle.net/EJBnm/

<div class="TableBox">
    <div>
        <div>Head</div> <div>Bigger Head</div> <div>Medium</div>
    </div>
    <div>
        <div>First</div> <div>Second</div> <div>Third</div>
    </div>
    <div>
        <div>First</div> <div>Second</div> <div>Third</div>
    </div>
    <div>
        <div>First</div> <div>Second</div> <div>Third</div>
    </div>
</div>

CSS:

.TableBox {display: table;}
.TableBox > div {display: table-row; border-spacing: 5px}
.TableBox > div >div {display: table-cell;  margin: 4px;}
.TableBox > div:nth-child(even){ color: red; }
.TableBox > div:nth-child(1){  background-color: #666666; color:white; border-spacing: 15px; background-clip:padding-box; padding: 14px; margin:0 20px}