How to use flex to realize horizontal and Vertical centering in CSS
This article mainly explains "how to use flex to achieve horizontal vertical center in CSS". The content in the article is simple and clear, easy to learn and understand. Please follow the editor's train of thought to study and learn "how to use flex to achieve horizontal vertical center in CSS".
Basic structural style:
.box {
Width: 400px
Height: 400px
Background-color: red
}
.inner {
Width: 100px
Height: 100px
Background-color: blue
}
1. Using flex layout
Start the flex layout with the parent element and set justify-content: center; align-items: center;.
Add a style:
.box {
Display: flex
Justify-content: center
Align-items: center
}
two。 Using flex+margin
The parent element sets the display: flex;, child element sets margin: auto;.
Add a style:
.box {display: flex;}
.inner {margin: auto;}
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