How to Center a Flex Item in a Container with Uneven Surrounding Elements?-CSS Tutorial-php.cn

How to Center a Flex Item in a Container with Uneven Surrounding Elements?

Barbara Streisand

Release： 2024-11-01 02:45:28

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How to Center a Flex Item in a Container with Uneven Surrounding Elements?

Centering a Flex Item in a Container Amidst Other Flex Items

Challenge:

Centering an

within a flex container while surrounded by varying numbers of elements.

Approach:

Since flex alignment properties distribute free space within the container, centering a single item among uneven siblings is challenging without additional measures.

Consideration:

When the total length of the surrounding elements is equal on both sides of the item, centering becomes possible.

Solution:

Wrap the

within its

container, ensuring equal total length with the remaining content.

<code class="html"><div class="container">
  <div>
    <span>I'm span 1</span>
    <span>I'm span 2</span>
  </div>
  <div>
    <h2>I'm an h2</h2>
  </div>
  <div>
    <span>I'm span 3</span>
  </div>
</div></code>

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<code class="css">.container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.container div {
  flex: 1 1 auto;  // Equalize flex sizing
  text-align: center;
}

h2 {
  flex: 0 0 auto;  // Prevent h2 from affecting flex sizing
  margin: auto;   // Center within its container
}</code>

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Explanation:

By setting the flex properties of the inner

containers to "1 1 auto," they occupy equal space within the flex container. The

's flex property is set to "0 0 auto," excluding it from the flex space distribution. The margin auto ensures the

is centered within its
container.

Additional Insights:

elements are centered within their respective
containers due to the text-align property.

While this approach centers the
perfectly, it may not be suitable if the surrounding content's length is dynamic.

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