How to vertically align an image inside a div?

2018-12-31 00:33发布

Question

How can you align an image inside of a containing div?

Example

In my example, I need to vertically center the <img> in the <div> with class ="frame" :

<div class="frame" style="height: 25px;">
    <img src="http://jsfiddle.net/img/logo.png" />
</div>

.frame's height is fixed and image's height is unknown. I can add new elements in .frame if that's the only solution. I'm trying to do this on IE≥7, Webkit, Gecko.

See the jsfiddle here

.frame {
    height: 25px;      /* equals max image height */
    line-height: 25px;
    width: 160px;
    border: 1px solid red;
    
    text-align: center; margin: 1em 0;
}
img {
    background: #3A6F9A;
    vertical-align: middle;
    max-height: 25px;
    max-width: 160px;
}
        
<div class=frame>
   <img src="http://jsfiddle.net/img/logo.png" height=250 />
</div>
<div class=frame>
   <img src="http://jsfiddle.net/img/logo.png" height=25 />
</div>
<div class=frame>
   <img src="http://jsfiddle.net/img/logo.png" height=23 />
</div>
<div class=frame>
   <img src="http://jsfiddle.net/img/logo.png" height=21 />
</div>
<div class=frame>
   <img src="http://jsfiddle.net/img/logo.png" height=19 />
</div>
<div class=frame>
    <img src="http://jsfiddle.net/img/logo.png" height=17 />
</div>
<div class=frame>
    <img src="http://jsfiddle.net/img/logo.png" height=15 />
 </div>
<div class=frame>
    <img src="http://jsfiddle.net/img/logo.png" height=13 />
 </div>
<div class=frame>
    <img src="http://jsfiddle.net/img/logo.png" height=11 />
 </div>
<div class=frame>
    <img src="http://jsfiddle.net/img/logo.png" height=9 />
 </div>
<div class=frame>
    <img src="http://jsfiddle.net/img/logo.png" height=7 />
 </div>
<div class=frame>
    <img src="http://jsfiddle.net/img/logo.png" height=5 />
 </div>
<div class=frame>
    <img src="http://jsfiddle.net/img/logo.png" height=3 />
 </div>

30条回答
素衣白纱
2楼-- · 2018-12-31 00:53

Want to align a image wich have after a text / title and both are inside a div?

See on JSfiddle or Run Code Snippet.

Just be sure to have an ID or a class at all your elements(div, img, title, etc).

For me works this solution on all browsers(for mobile devices you must to adapt your code with: @media).

h2.h2red {
color: red; 
font-size: 14px;
}
.mydivclass {
margin-top: 30px;
display: block;
}
img.mydesiredclass {
margin-right: 10px;  
display: block;  
float: left;/*If you want to allign the text with an image on the same row*/  
width: 100px;
heght: 100px;
margin-top: -40px/*Change this value to adapt to your page*/;
}
<div class="mydivclass">
<br />
<img class="mydesiredclass" src="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b3/Wikipedia-logo-v2-en.svg/2000px-Wikipedia-logo-v2-en.svg.png">
<h2 class="h2red">Text alligned after image inside a div by negative manipulate the img postion</h2>
</div>

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琉璃瓶的回忆
3楼-- · 2018-12-31 00:53

Background image solution I removed the image element all together and set it as background of the div with a class of .frame

http://jsfiddle.net/URVKa/2/

this at least works fine on IE8, FF6 and Chrome13

I checked, this solution will not work to shrink images larger then 25px height. There is a property called background-size which does set the size of the element, but it is CSS3 which would conflict with IE7 requirement.

I wouldd advice you to either redo your browser priorities and design for the best available browsers, or get some serverside code to resize the images if you'd want to use this solution

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大哥的爱人
4楼-- · 2018-12-31 00:54

The only (and the best cross-browser) way as I know is to use an inline-block helper with height: 100% and vertical-align: middle on both elements.

So there is a solution: http://jsfiddle.net/kizu/4RPFa/4570/

.frame {
    height: 25px;      /* equals max image height */
    width: 160px;
    border: 1px solid red;
    white-space: nowrap; /* this is required unless you put the helper span closely near the img */
    
    text-align: center; margin: 1em 0;
}

.helper {
    display: inline-block;
    height: 100%;
    vertical-align: middle;
}

img {
    background: #3A6F9A;
    vertical-align: middle;
    max-height: 25px;
    max-width: 160px;
}
<div class="frame">
    <span class="helper"></span><img src="http://jsfiddle.net/img/logo.png" height=250px />
</div>
<div class="frame">
    <span class="helper"></span><img src="http://jsfiddle.net/img/logo.png" height=25px />
</div>
<div class="frame">
    <span class="helper"></span><img src="http://jsfiddle.net/img/logo.png" height=23px />
</div>
<div class="frame">
    <span class="helper"></span><img src="http://jsfiddle.net/img/logo.png" height=21px />
</div>
<div class="frame">
    <span class="helper"></span><img src="http://jsfiddle.net/img/logo.png" height=19px />
</div>
<div class="frame">
    <span class="helper"></span>
    <img src="http://jsfiddle.net/img/logo.png" height=17px />
</div>
<div class="frame">
    <span class="helper"></span>
    <img src="http://jsfiddle.net/img/logo.png" height=15px />
</div>
<div class="frame">
    <span class="helper"></span>
    <img src="http://jsfiddle.net/img/logo.png" height=13px />
</div>
<div class="frame">
    <span class="helper"></span>
    <img src="http://jsfiddle.net/img/logo.png" height=11px />
</div>
<div class="frame">
    <span class="helper"></span>
    <img src="http://jsfiddle.net/img/logo.png" height=9px />
</div>
<div class="frame">
    <span class="helper"></span>
    <img src="http://jsfiddle.net/img/logo.png" height=7px />
</div>
<div class="frame">
    <span class="helper"></span>
    <img src="http://jsfiddle.net/img/logo.png" height=5px />
</div>
<div class="frame">
    <span class="helper"></span>
    <img src="http://jsfiddle.net/img/logo.png" height=3px />
</div>

Or, if you don't want to have an extra element in modern browsers and don't mind using IE expressions, you can use a pseudo-element and add it to IE using a convenient Expression, that runs only once per element, so there won't be any performance issues:

The solution with :before and expression() for IE: http://jsfiddle.net/kizu/4RPFa/4571/

.frame {
    height: 25px;      /* equals max image height */
    width: 160px;
    border: 1px solid red;
    white-space: nowrap;
    
    text-align: center; margin: 1em 0;
}

.frame:before,
.frame_before {
    content: "";
    display: inline-block;
    height: 100%;
    vertical-align: middle;
}

img {
    background: #3A6F9A;
    vertical-align: middle;
    max-height: 25px;
    max-width: 160px;
}

/* Move this to conditional comments */
.frame {
    list-style:none;
    behavior: expression(
        function(t){
            t.insertAdjacentHTML('afterBegin','<span class="frame_before"></span>');
            t.runtimeStyle.behavior = 'none';
        }(this)
    );
}
<div class="frame"><img src="http://jsfiddle.net/img/logo.png" height=250px /></div>
<div class="frame"><img src="http://jsfiddle.net/img/logo.png" height=25px /></div>
<div class="frame"><img src="http://jsfiddle.net/img/logo.png" height=23px /></div>
<div class="frame"><img src="http://jsfiddle.net/img/logo.png" height=21px /></div>
<div class="frame"><img src="http://jsfiddle.net/img/logo.png" height=19px /></div>
<div class="frame"><img src="http://jsfiddle.net/img/logo.png" height=17px /></div>
<div class="frame"><img src="http://jsfiddle.net/img/logo.png" height=15px /></div>
<div class="frame"><img src="http://jsfiddle.net/img/logo.png" height=13px /></div>
<div class="frame"><img src="http://jsfiddle.net/img/logo.png" height=11px /></div>
<div class="frame"><img src="http://jsfiddle.net/img/logo.png" height=9px /></div>
<div class="frame"><img src="http://jsfiddle.net/img/logo.png" height=7px /></div>
<div class="frame"><img src="http://jsfiddle.net/img/logo.png" height=5px /></div>
<div class="frame"><img src="http://jsfiddle.net/img/logo.png" height=3px /></div>


How it works:

  1. When you have two inline-block elements near each other, you can align each to other's side, so with vertical-align: middle you'll get something like this:

    Two aligned blocks

  2. When you have a block with fixed height (in px, em or other absolute unit), you can set the height of inner blocks in %.

  3. So, adding one inline-block with height: 100% in a block with fixed height would align another inline-block element in it (<img/> in your case) vertically near it.
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皆成旧梦
5楼-- · 2018-12-31 00:56

http://jsfiddle.net/MBs64/

.frame {
    height: 35px;      /* equals max image height */
    width: 160px;
    border: 1px solid red;
    text-align: center; 
    margin: 1em 0;
    display: table-cell;
    vertical-align: middle;
}
img {
    background: #3A6F9A;
    display: block;
    max-height: 35px;
    max-width: 160px;
}

The key property is display: table-cell; for .frame. Div.frame is displayed as inline with this, so you need to wrap it in a block element.

This works in FF, Opera, Chrome, Safari and IE8+.

UPDATE

For IE7 we need to add a css expression:

*:first-child+html img {
    position: relative;
    top: expression((this.parentNode.clientHeight-this.clientHeight)/2+"px");
}
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十年一品温如言
6楼-- · 2018-12-31 00:57

You could try setting the CSS of PI to display: table-cell; vertical-align: middle;

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无色无味的生活
7楼-- · 2018-12-31 00:57

You can try below code

.frame{
 display:flex;
 justify-content: center;
 align-items: center;
 width:100%;
} 
<div class="frame" style="height: 25px;">
    <img src="http://jsfiddle.net/img/logo.png" />
</div>

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