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How to set horizontal centering in css: 1. Use the "text-align: center;" style to horizontally center inline elements in block-level elements (parent elements); 2. Use "margin: 0 auto;" style, which can horizontally center block-level elements with fixed width in block-level elements (parent elements).
The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.
Method 1: Use the text-align attribute
Directly set the text-align: center;
style to the parent element, you can set the block-level element Horizontal centering of inline elements in (parent element)
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <style> #father { width: 300px; height: 100px; background: palevioletred; text-align: center; } </style> <div id="father"> 我是测试文本! </div> </html>
Rendering:
Description:
This method is only effective for horizontal centering of text, pictures, buttons and other inline elements (the display
attribute is set to inline
or inline-block
)
(Learning video sharing: css video tutorial)
Method 2: Use the margin attribute
to set the child elements that need to be centeredmargin: 0 auto;
style, you can horizontally center block-level elements with fixed width in block-level elements (parent elements).
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <style> #father { width: 300px; height: 100px; background-color: palevioletred; } #son { width: 100px; height: 50px; background-color: pink; margin: 0 auto; } </style> <div id="father"> <div id="son">我是块级元素</div> </div> </html>
Rendering:
Description:
This method can only be horizontally centered, and for floating elements Invalid targeting.
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