Flexbox:水平和垂直中心

如何在容器中使用flexbox水平和垂直地居中div。在下面的例子中，我想要每个数字都在对方下面(在行中)，这是水平居中。

.flex-container { padding: 0; margin: 0; list-style: none; display: flex; align-items: center; justify-content: center; } row { width: 100%; } .flex-item { background: tomato; padding: 5px; width: 200px; height: 150px; margin: 10px; line-height: 150px; color: white; font-weight: bold; font-size: 3em; text-align: center; } <div class="flex-container"> <div class="row"> <span class="flex-item">1</span> </div> <div class="row"> <span class="flex-item">2</span> </div> <div class="row"> <span class="flex-item">3</span> </div> <div class="row"> <span class="flex-item">4</span> </div> </div>

http://codepen.io/anon/pen/zLxBo

当前回答

Add

.container {
    display: flex;
    justify-content: center;
    align-items: center;
}

到你想居中的容器元素。文档: justify-content和对齐项目。

2017-04-12 13:06:27

其他回答

您可以在flex-container中添加flex-direction:column

.flex-container {
  flex-direction: column;
}

将display:inline-block添加到flex-item

.flex-item {
 display: inline-block;
}

因为您添加的宽度和高度对该元素没有影响，因为它具有内联显示。尝试添加display:inline-block或display:block。了解更多关于宽度和高度的知识。

也添加到row类(你被给予row{}而不是作为样式)

.row{
  width:100%;
  margin:0 auto;
  text-align:center;
}

工作演示:

.flex-container { padding: 0; margin: 0; list-style: none; display: flex; align-items: center; justify-content:center; flex-direction:column; } .row{ width:100%; margin:0 auto; text-align:center; } .flex-item { background: tomato; padding: 5px; width: 200px; height: 150px; margin: 10px; line-height: 150px; color: white; font-weight: bold; font-size: 3em; text-align: center; display: inline-block; } <div class="flex-container"> <div class="row"> <span class="flex-item">1</span> </div> <div class="row"> <span class="flex-item">2</span> </div> <div class="row"> <span class="flex-item">3</span> </div> <div class="row"> <span class="flex-item">4</span> </div> </div>

工作演示栏:

.flex-container { padding: 0; margin: 0; width: 100%; list-style: none; display: flex; align-items: center; } .row { width: 100%; } .flex-item { background: tomato; padding: 5px; width: 200px; height: 150px; margin: 10px; line-height: 150px; color: white; font-weight: bold; font-size: 3em; text-align: center; display: inline-block; } <div class="flex-container"> <div class="row"> <span class="flex-item">1</span> </div> <div class="row"> <span class="flex-item">2</span> </div> <div class="row"> <span class="flex-item">3</span> </div> <div class="row"> <span class="flex-item">4</span> </div> </div>

2020-09-19 10:22:16

Add

.container {
    display: flex;
    justify-content: center;
    align-items: center;
}

到你想居中的容器元素。文档: justify-content和对齐项目。

2017-04-12 13:06:27

不要忘记使用重要的浏览器特定属性:

对齐项目:中心;-->

-webkit-box-align: center;
-moz-box-align: center;
-ms-flex-align: center;
-webkit-align-items: center;
align-items: center;

justify-content:中心;-->

-webkit-box-pack: center;
-moz-box-pack: center;
-ms-flex-pack: center;
-webkit-justify-content: center;
justify-content: center;

你可以阅读这两个链接来更好地理解flex: http://css-tricks.com/almanac/properties/j/justify-content/和 http://ptb2.me/flexbox/

祝你好运。

2014-06-14 12:02:49

结果:

CODE

HTML:

<div class="flex-container">
  <div class="rows">

    <div class="row">
      <span class="flex-item">1</span>
    </div>
    <div class="row">
      <span class="flex-item">2</span>
    </div>
    <div class="row">
      <span class="flex-item">3</span>
    </div>
    <div class="row">
      <span class="flex-item">4</span>
    </div>

  </div>  
</div>

CSS:

html, body {
  height: 100%;  
}

.flex-container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
}

.rows {
  display: flex;
  flex-direction: column;
}

其中flex-container div用于垂直和水平居中你的行div，和行div用于分组你的“项目”，并在一个基于列的顺序。

2019-12-06 13:35:30

希望这能有所帮助。

.flex-container {
  padding: 0;
  margin: 0;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: center;
}
row {
  width: 100%;
}
.flex-item {
  background: tomato;
  padding: 5px;
  width: 200px;
  height: 150px;
  margin: 10px;
  line-height: 150px;
  color: white;
  font-weight: bold;
  font-size: 3em;
  text-align: center;
}

2020-03-22 15:37:59

Flexbox:水平和垂直中心

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