.cell-row{显示:表;宽度:100%;身高:100 px;background - color: lightgrey;text-align:中心} .cell{显示:table-cell} .cell-middle {vertical-align: middle} < div class = " cell-row”> <div class="cell - cell-middle">Center</div> < / div >

这是非常简单的代码，为我工作!它只有一行，你的文本将水平居中。

.center-horizontally{
  justify-content: center;
}

<Card.Footer className="card-body-padding center-horizontally">
  <label className="support-expand-text-light">Call or email Customer Support to change</label>
</Card.Footer>

输出如下所示:

.cell-row{显示:表;宽度:100%;身高:100 px;background - color: lightgrey;text-align:中心} .cell{显示:table-cell} .cell-middle {vertical-align: middle} < div class = " cell-row”> <div class="cell - cell-middle">Center</div> < / div >

Use:

# Parent
{
  display: table;
}

# Child
{
  display: table-cell;
  width: 100%; /* As large as its parent to center the text horizontally */
  text-align: center;
  vertical-align: middle; /* Vertically align this element on its parent */
}

你可以尝试非常简单的代码:

  display: flex;
  align-items: center;
  justify-content: center;

.box { 身高:90 px; 宽度:90 px; 背景:绿色; 显示:flex; 对齐项目:中心; justify-content:中心; ｝ < div class = "盒子" > Lorem < / div >

代码依赖链接:http://codepen.io/santoshkhalse/pen/xRmZwr

div { 身高:90 px; 行高:90 px; text-align:中心; 边界:2px虚线#f69c55; } < div > 你好,世界! ! < / div >