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html - 如何居中“位置:绝对”元素(How to center a “position: absolute” element)

I'm having a problem centering an element that has the attribute position set to absolute .

(我在将属性position设置为absolute的元素居中时遇到问题。)

Does anyone know why the images are not centered?

(有谁知道为什么图像没有居中?)

 body { text-align: center; } #slideshowWrapper { margin-top: 50px; text-align: center; } ul#slideshow { list-style: none; position: relative; margin: auto; } ul#slideshow li { position: absolute; } ul#slideshow li img { border: 1px solid #ccc; padding: 4px; height: 450px; } 
 <body> <div id="slideshowWrapper"> <ul id="slideshow"> <li><img src="img/dummy1.JPG" alt="Dummy 1" /></li> <li><img src="img/piano_unlicened.JPG" alt="Dummy 2" /></li> </ul> </div> </body> 

  ask by user1098278 translate from so


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position: absolute;
margin-left: auto;
margin-right: auto;
left: 0;
right: 0;

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