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Difference between inline-flex and inline-block in CSS
CSS inline-flex and inline-block are values of the CSS display property that control how elements align and behave within their containers. Both make elements flow inline while providing different layout capabilities.
Syntax
selector {
display: inline-block;
}
selector {
display: inline-flex;
}
Key Differences
- CSS inline-block: Allows an element to flow inline with other elements while maintaining block-level characteristics like width and height. Children follow normal document flow.
- CSS inline-flex: Creates an inline-level flex container where children are laid out using flexbox rules with full alignment control.
Example: Comparing inline-block and inline-flex
The following example demonstrates the difference between inline-block and inline-flex
<!DOCTYPE html>
<html>
<head>
<style>
.container {
background-color: #f0f0f0;
margin-bottom: 20px;
padding: 10px;
}
.child {
width: 80px;
height: 60px;
margin: 5px;
background-color: #4CAF50;
color: white;
text-align: center;
line-height: 60px;
}
.inline-block {
display: inline-block;
}
.inline-flex {
display: inline-flex;
align-items: center;
justify-content: center;
}
</style>
</head>
<body>
<h3>inline-block Elements</h3>
<div class="container">
<div class="child inline-block">Box 1</div>
<div class="child inline-block">Box 2</div>
<div class="child inline-block">Box 3</div>
</div>
<h3>inline-flex Elements</h3>
<div class="container">
<div class="child inline-flex">Box 1</div>
<div class="child inline-flex">Box 2</div>
<div class="child inline-flex">Box 3</div>
</div>
</body>
</html>
Both sections show three green boxes arranged horizontally. The inline-flex boxes demonstrate better text centering due to flexbox alignment properties.
Comparison Table
| Feature | inline-block | inline-flex |
|---|---|---|
| Layout Behavior | Inline-level with block properties | Inline-level flex container |
| Child Layout | Normal block/inline flow | Flexbox layout rules |
| Alignment Control | Limited to margins/padding | Full flexbox alignment |
| Flexbox Support | Not available | Complete flexbox features |
| Best Use Case | Simple inline layout with custom size | Complex child alignment within inline container |
Conclusion
Use inline-block for simple inline layouts with custom dimensions. Choose inline-flex when you need advanced alignment control and flexbox features within an inline container.
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