How Can I Center a Middle Item in a Flexbox Layout with Unevenly Sized Side Items?

Centering the Middle Item Amidst Varying Side Item Widths

In a flexbox layout, aligning the center item perfectly can be challenging when side items have different widths. To address this issue, we can utilize nested flex containers with auto margins.

The key concepts behind this approach are:

• Using nested flex containers ensures the items are distributed within and between the boxes as desired.
• Applying auto margins to the inner container in the left and right boxes automatically adjusts the position to center the middle item.

Here's the code demonstrating this technique:

.container {
  display: flex;
}

.box {
  flex: 1;
  display: flex;
  justify-content: center;
}

.box:first-child > div {
  margin-right: auto;
}

.box:last-child > div {
  margin-left: auto;
}

/* non-essential */
.box {
  align-items: center;
  height: 40px;
}

.inner {
  background: pink;
  border: 1px solid deeppink;
  padding: 0 5px;
}

p {
  text-align: center;
  margin: 5px 0 0 0;
}

In this code, the container is set as a flexbox, and the boxes are flex items with a flex ratio of 1. Each box uses a nested flexbox to center its content.

The key step is setting the auto margins to the inner container in the first and last boxes. For the left side, margin-right: auto; automatically adjusts the space to the right of the element, while margin-left: auto; does the same on the left side. This ensures the centered box remains centered, regardless of the widths of the side boxes.

By using this approach, you can achieve true centering of the middle item, even when the side items have different widths.

The above is the detailed content of How Can I Center a Middle Item in a Flexbox Layout with Unevenly Sized Side Items?. For more information, please follow other related articles on the PHP Chinese website!