flex and justify-content vs. text-align: What's the Difference?
While both "flex" and "justify-content" can be used to align content within a parent element, they have distinct functionalities and use cases.
text-align:
- Primarily aligns inline-level elements (e.g., text) within a block-level container.
- Works by adjusting the position of the text within its containing block.
- Does not affect the overall layout or size of the parent element.
flex:
- Enables advanced layout control for both block-level and inline-level elements.
- Introduces a new "flex container" that controls the layout of its children.
- Provides the "justify-content" property to align child elements along the main axis of the flex container.
Use Case Considerations:
- When aligning a single element (e.g., a button), "text-align" and "flex" may appear equivalent.
- However, for multiple elements within a container, flexbox offers more flexibility and control.
Bootstrap's Shift from text-align to flex:
Bootstrap migrated to using flex for aligning buttons in modal footers because it allowed for greater control over the layout:
- Flexbox enabled the arrangement of multiple buttons in a row within the footer.
- It also provided better responsiveness on different screen sizes.
Example:
Consider the following code:
<div class="parent-flex">
some text here
<button>Awesome button!</button>
</div>
<div class="parent-normal">
some text here
<button>Awesome button!</button>
</div>
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- In the "parent-flex" case, the text and button will be laid out horizontally with the button aligned to the right end of the container.
- In the "parent-normal" case, the text and button will be aligned right, but the container's width will be adjusted to fit the elements.
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