在 div 内水平居中图像

Question

This is probably a stupid question but since the usual ways of center aligning an image are not working I thought I would ask. How can I center align (horizontally) an image inside its container div?

Here's the HTML and CSS. I've also included the CSS for the other elements of the thumbnail. It runs in descending order so the highest element is the container of everything and the lowest is inside everything.

 #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>

Okay, I have added the markup without the PHP in so should be easier to see. Neither solution seems to work in practice. The text at top and bottom cannot be centered and the image should be centered within its container div. The container has overflow hidden so I want to see the center of the image as that's normally where the focus is.

Answer 1

#artiststhumbnail a img {
    display:block;
    margin:auto;
}

Here's my solution in: http://jsfiddle.net/marvo/3k3CC/2/

Answer 2

CSSflexbox can do it with justify-content: center on the image parent element. To preserve the aspect ratio of the image, add align-self: flex-start; to it.

HTML

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

CSS

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

Output:

 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>

Answer 3

I just found this solution below on the W3 CSS page and it answered my problem.

img {
    display: block;
    margin-left: auto;
    margin-right: auto;
}

Source: http://www.w3.org/Style/Examples/007/center.en.html

Answer 4

This also would do it

#imagewrapper {
    text-align:center;
}

#imagewrapper img {
    display:inline-block;
    margin:0 5px;
}

Answer 5

The best thing I have found (that seems to work in all browsers) for centering an image, or any element, horizontally is to create a CSS class and include the following parameters:

CSS

.center {
    position: relative;          /* where the next element will be automatically positioned */
    display: inline-block;       /* causes element width to shrink to fit content */
    left: 50%;                   /* moves left side of image/element to center of parent element */
    transform: translate(-50%);  /* centers image/element on "left: 50%" position */
}

You can then apply the CSS class you created to your tag as follows:

HTML

<img class="center" src="image.jpg" />

You can also inline the CSS in your element(s) by doing the following:

<img style="position: relative; display: inline-block; left: 50%; transform: translate(-50%);" src ="image.jpg" />

...but I wouldn't recommend writing CSS inline because then you have to make multiple changes in all your tags using your centering CSS code if you ever want to change the style.

Answer 6

This is what I ended up doing:

<div style="height: 600px">
   <img src="assets/zzzzz.png" alt="Error" style="max-width: 100%; 
        max-height: 100%; display:block; margin:auto;" />
</div>

Which will limit the image height to 600px and will horizontally-center (or resize down if the parent width is smaller) to the parent container, maintaining proportions.

Answer 7

I am going to go out on a limb and say that the following is what you are after.

Note, the following I believe was accidentally omitted in the question (see comment):

<div id="thumbnailwrapper"> <!-- <<< This opening element -->
    <div id="artiststhumbnail">
...

So what you need is:

#artiststhumbnail {
    width:120px;
    height:108px;
    margin: 0 auto; /* <<< This line here. */
    ...
}

http://jsfiddle.net/userdude/XStjX/3/

Answer 8

Add this to your CSS:

#artiststhumbnail a img {
   display: block;
   margin-left: auto;
   margin-right: auto;
}

Just referencing a child element which in that case is the image.

Answer 9

要将图像水平居中，这有效：

<p style="text-align:center"><img src=""></p>

Answer 10

为左右放置一个相等的像素填充：

<div id="artiststhumbnail" style="padding-left:ypx;padding-right:ypx">

Answer 11

Put the picture inside a newDiv . Make the width of the containing div the same as the image. Apply margin: 0 auto; to the newDiv . That should center the div within the container.

Answer 12

Center a image in a div

 /* standar */ div, .flexbox-div { position: relative; width: 100%; height: 100px; margin: 10px; background-color: grey; } img { border: 3px solid red; width: 75px; height: 75px; } /* || standar */ /* transform */ .transform { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); -ms-transform: translate(-50%, -50%); /* IE 9 */ -webkit-transform: translate(-50%, -50%); /* Chrome, Safari, Opera */ } /* || transform */ /* flexbox margin */ .flexbox-div { display: -webkit-flex; display: flex; background-color: lightgrey; } .margin-img { margin: auto; } /* || flexbox margin */ /* flexbox justify align */ .flexbox-justify { justify-content: center; } .align-item { align-self: center; } /* || flexbox justify align */

 <h4>Using transform </h4> <div> <img class="transform" src="http://placeholders.org/250/000/fff" alt="Not By Design" border="1" /> </div> <h4>Using flexbox margin</h4> <div class="flexbox-div"> <img class="margin-img" src="http://placeholders.org/250/000/fff" alt="Not By Design" border="1" /> </div> <h4>Using flexbox justify align</h4> <div class="flexbox-div flexbox-justify"> <img class="align-item" src="http://placeholders.org/250/000/fff" alt="Not By Design" border="1" /> </div>

Answer 13

I have tried a few ways. But this way works perfectly for me

<img src="~/images/btn.png" class="img-responsive" id="hide" style="display: block; margin-left: auto; margin-right: auto;" />

Answer 14

A responsive way to center an image can be like this:

.center {
    display: block;
    margin: auto;
    max-width: 100%;
    max-height: 100%;
}

Answer 15

Use positioning. The following worked for me... (Horizontally and Vertically Centered)

With zoom to the center of the image (image fills the div):

div{
    display:block;
    overflow:hidden;
    width: 70px; 
    height: 70px;  
    position: relative;
}
div img{
    min-width: 70px; 
    min-height: 70px;
    max-width: 250%; 
    max-height: 250%;    
    top: -50%;
    left: -50%;
    bottom: -50%;
    right: -50%;
    position: absolute;
}

Without zoom to the center of the image (image does not fill the div):

   div{
        display:block;
        overflow:hidden;
        width: 100px; 
        height: 100px;  
        position: relative;
    }
    div img{
        width: 70px; 
        height: 70px; 
        top: 50%;
        left: 50%;
        bottom: 50%;
        right: 50%;
        position: absolute;
    }

Answer 16

you can align your content using flex box with minimum code

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{ width:100%; background:green; display:flex; justify-content: center; align-items:center; }

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

js fiddle link https://jsfiddle.net/7un6ku2m/

Answer 17

yeah, the code like this work fine

<div>
 <img>
</div>

but just to remind u, the style for image

object-fit : *depend on u*

so the final code be like Example

<div style="border: 1px solid red;">
    <img
      src="./assets/images/truck-toy.jpg"
      alt=""
      srcset=""
      style="
       border-radius: 50%;
       height: 7.5rem;
       width: 7.5rem;
       object-fit: contain;"
    />
</div>

Answer 18

If you have to do this inline (such as when using an input box),
here is a quick hack that worked for me: surround your (image link in this case)
in a div with style="text-align:center"

<div style="text-align:center">

<a title="Example Image: Google Logo" href="https://www.google.com/" 
target="_blank" rel="noopener"><img src="https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_272x92dp.png" alt="Google Logo. Click to visit Google.com" border="0" data-recalc-dims="1" /></a>

<h6><strong>This text will also be centered </strong></h6>

</div> /* ends centering style */

Answer 19

 .document { align-items: center; background-color: hsl(229, 57%, 11%); border-radius: 5px; display: flex; height: 40px; width: 40px; } .document img { display: block; margin: auto; }

 <div class="document"> <img src="./images/icon-document.svg" alt="icon-document" /> </div>

Answer 20

To center a image use this css. You have to give width at first of the image.

img{
  width: 300px;
  position: fixed;
  left0;
  right:0;

}

Answer 21

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1">


      <style>
      body{
  /*-------------------important for fluid images---\/--*/
  overflow-x: hidden; /* some browsers shows it for mysterious reasons to me*/
  overflow-y: scroll;
  margin-left:0px;
  margin-top:0px;
  /*-------------------important for fluid images---/\--*/
      }
      .thirddiv{
      float:left;
      width:100vw;
      height:100vh;
      margin:0px;
      background:olive;
      }
      .thirdclassclassone{
      float:left;   /*important*/
      background:grey;
      width:80vw;
      height:80vh; /*match with img height bellow*/
      margin-left:10vw; /* 100vw minus "width"/2    */
      margin-right:10vw; /* 100vw minus "width"/2   */
      margin-top:10vh;
      }
      .thirdclassclassone img{
      position:relative; /*important*/
     display: block;  /*important*/
    margin-left: auto;  /*very important*/
    margin-right: auto;  /*very important*/
    height:80vh; /*match with parent div above*/

    /*--------------------------------
    margin-top:5vh;
    margin-bottom:5vh;
    ---------------------------------*/
    /*---------------------set margins to match total  height of parent di----------------------------------------*/
      }
    </style>           
</head>  
<body>
    <div class="thirddiv">
       <div class="thirdclassclassone">
       <img src="ireland.png">
    </div>      
</body>
</html>

Answer 22

##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;
}

Answer 23

Style.css

img#center-img{

 display: block;
 margin: auto;
}

Html

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