如何正确对齐中心的元素？

Question

我使用grid

创建的简单css

#videowall-grid{
    width:700px; 
    border:1px dotted #dddddd;
    display: none; 
    margin: 5px auto;
    padding: 5px;
}

 #videowall-grid .square{
    padding: 5px;
    margin: 5px;
    border: 1px dashed #dddddd;
    width: 70px;
    height: 70px;
    display: inline-block;
    text-align: center;

    <div id="videowall-grid" style="display: block;"><div class="row">
<div id="1_1" class="square">8</div><div id="1_2" class="square">373</div><div id="1_3" class="square">1</div><div id="1_4" class="square">111</div></div><div class="row">
<div id="2_1" class="square">318</div><div id="2_2" class="square">319</div><div id="2_3" class="square">321</div><div id="2_4" class="square">button</div></div><div class="row">
<div id="3_1" class="square">234</div><div id="3_2" class="square">button</div><div id="3_3" class="square">button</div><div id="3_4" class="square">button</div></div></div>

http://jsfiddle.net/nonamez/upHjg/

那么如何center在父div内的正方形和正方形内的文字？

Answer 1

添加display:table＆amp; margin:0 auto将div 和 display:table-cell排成一行以使文本垂直居中

#videowall-grid{
    width:700px; 
    border:1px dotted #dddddd;
    display: none; 
    margin: 0 auto;
    padding: 5px; text-align:center
}
#row{display:table;  margin:0 auto}
 #videowall-grid .square{
    padding: 5px;
    margin: 5px;
    border: 1px dashed #dddddd;
    width: 70px;
    height: 70px;
    display:table-cell;
    text-align: center;
    vertical-align:middle
}​

<强> LIVE DEMO

Answer 2

在text-align: center;中添加#videowall-grid，它将解决您的问题。

DEMO

Answer 3

将text-align:center;样式添加到#videowall-grid：

#videowall-grid{
    width:700px; 
    border:1px dotted #dddddd;
    display: none; 
    margin: 5px auto;
    padding: 5px;
    text-align:center;
}

text-align可用于对齐任何inline元素。由于您将.square设置为inline-block，因此他们会对此风格做出反应。

选中此JSFiddle Update

P.S。文本 位于JSfiddle中的方块内。

Answer 4

 <div id="videowall-grid" style="display: block;" align="center">

像上面一样修改这个div

Answer 5

<style type="text/css">
#videowall-grid{
    width:550px; 
    border:1px dotted #dddddd;
    display: none; 
    margin: 5px auto;
    padding: 5px 5px 5px 150px;

}

 #videowall-grid .square{
    padding: 30px 5px 5px 5px;
    margin: 5px;
    border: 1px dashed #dddddd;
    width: 70px;
    height: 45px;
    display: inline-block;
    text-align: center;
}
</style>
<div id="videowall-grid" style="display: block;"><div class="row">
<div id="1_1" class="square">8</div><div id="1_2" class="square">373</div><div id="1_3" class="square">1</div><div id="1_4" class="square">111</div></div><div class="row">
<div id="2_1" class="square">318</div><div id="2_2" class="square">319</div><div id="2_3" class="square">321</div><div id="2_4" class="square">button</div></div><div class="row">
<div id="3_1" class="square">234</div><div id="3_2" class="square">button</div><div id="3_3" class="square">button</div><div id="3_4" class="square">button</div></div></div>