我怎么能居中对齐(水平)一个图像内的容器div?

这里是HTML和CSS。我还为缩略图的其他元素添加了CSS。它以降序运行,所以最高的元素是所有元素的容器,最低的元素是所有元素的内部。

#thumbnailwrapper { color: #2A2A2A; margin-right: 5px; border-radius: 0.2em; margin-bottom: 5px; background-color: #E9F7FE; padding: 5px; border: thin solid #DADADA; font-size: 15px } #artiststhumbnail { width: 120px; height: 108px; overflow: hidden; border: thin solid #DADADA; background-color: white; } #artiststhumbnail:hover { left: 50px } <!--link here--> <a href="NotByDesign"> <div id="thumbnailwrapper"> <a href="NotByDesign"> <!--name here--> <b>Not By Design</b> <br> <div id="artiststhumbnail"> <a href="NotByDesign"> <!--image here--> <img src="../files/noprofile.jpg" height="100%" alt="Not By Design" border="1" /> </a> </div> <div id="genre">Punk</div> </div>

好的,我已经添加了没有PHP的标记,所以应该更容易看到。这两种解决方案在实践中似乎都行不通。顶部和底部的文本不能居中,图像应该在其容器div中居中。容器有溢出隐藏,所以我想看到图像的中心,因为这通常是焦点所在。


当前回答

Style.css

img#center-img{

 display: block;
 margin: auto;
}

Html

<html>
  <body>
    <div>
      <img src='pic.png' id='center-img'>
    </div>
  </body>
</html>

其他回答

Style.css

img#center-img{

 display: block;
 margin: auto;
}

Html

<html>
  <body>
    <div>
      <img src='pic.png' id='center-img'>
    </div>
  </body>
</html>

CSS flexbox可以用图像父元素的justify-content: center来实现。为了保持图像的纵横比,添加align-self: flex-start;到它。

HTML

<div class="image-container">
  <img src="http://placehold.it/100x100" />
</div>

CSS

.image-container {
  display: flex;
  justify-content: center;
}

输出:

body { background: lightgray; } .image-container { width: 200px; display: flex; justify-content: center; margin: 10px; padding: 10px; /* Material design properties */ background: #fff; box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 3px 1px -2px rgba(0, 0, 0, 0.2), 0 1px 5px 0 rgba(0, 0, 0, 0.12); } .image-2 { width: 500px; align-self: flex-start; /* to preserve image aspect ratio */ } .image-3 { width: 300px; align-self: flex-start; /* to preserve image aspect ratio */ } <div class="image-container"> <img src="http://placehold.it/100x100" /> </div> <div class="image-container image-2"> <img src="http://placehold.it/100x100/333" /> </div> <div class="image-container image-3"> <img src="http://placehold.it/100x100/666" /> </div>

您可以使用flex box以最少的代码对齐您的内容

HTML

<div class="image-container">
<img src="https://image.freepik.com/free-vector/modern-abstract-background_1048-1003.jpg" width="100px"> 
</div>

CSS

.image-container{
  width:100%;
  background:green;
  display:flex;

.image-container { 宽度:100%; 背景:绿色; 显示:flex; justify-content:中心; 对齐项目:中心; } < div class = "图像容器" > <img src="https://image.freepik.com/free-vector/modern-abstract-background_1048-1003.jpg" width="100px"> < / div >

Js小提琴链接https://jsfiddle.net/7un6ku2m/

##Both Vertically and Horizontally center of the Page
.box{
    width: 300px;
    height: 300px;
    background-color: #232532;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
}
#artiststhumbnail a img {
    display:block;
    margin:auto;
}

这是我的解决方案:http://jsfiddle.net/marvo/3k3CC/2/