如何在弹性项目（单元格）中居中图像

Question

我有一个 3x3 的 flexbox，每个 item/cell 都有一个图标和标题。我只是想水平居中图标（svg 图像）。我试过 justify-content: center; 但它似乎不起作用。任何人都可以告诉我如何在 flexbox 项目（或单元格，正如我所指的那样）中水平居中图像吗？下面的代码。

HTML:

<div class="grid">
    <div class="cell">
        <img src="images/cs_icon_01.svg">
        <div class="service-title">Materials Handling, Warehousing &amp; Storage Facility Management</div>
    </div>
    <div class="cell">Content</div>
    <div class="cell">Content</div>
    <div class="cell">Content</div>
    <div class="cell">Content</div>
    <div class="cell">Content</div>
    <div class="cell">Content</div>
    <div class="cell">Content</div>
    <div class="cell">Content</div>
</div>

CSS:

.grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  margin-bottom: 130px;
}

.cell {
  flex: 0 0 30%;
  height: 220px;
  margin-bottom: 20px;
  justify-content: center;
}

.grid img {
  width: 45px;
}

.service-title {
  display: inline-block;
  font-family: Montserrat, Helvetica, Arial, sans-serif;
  font-size: 16px;
  font-weight: 300;
  color: #4e4e4e;
  line-height: 24px;
  padding: 20px 16px 4px 16px;
  text-align: center;
}

Answer 1

你可以试试经典的display+margin:

.grid img {
  width: 45px;
  display:block;
  margin:auto;/* horizontal center effect */
}

或使用text-align:

.cell {
  flex: 0 0 30%;
  height: 220px;
  margin-bottom: 20px;
  /*justify-content*/ text-align: center;
}

如何在弹性项目（单元格）中居中图像

How to center an image within a flex item (cell)

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