CSS Display an Image Resized and Cropped

I want to show an image from an URL with a certain width and height even if it has a different size ratio. So I want to resize (maintaining the ratio) and then cut the image to the size I want.

I can resize with html img property and I can cut with background-image .
How can I do both?

Example:

This image:

Has the size 800x600 pixels and I want to show like an image of 200x100 pixels

With img I can resize the image 200x150px :

<img 
    style="width: 200px; height: 150px;" 
    src="http://img1.jurko.net/wall/paper/donald_duck_4.jpg">

That gives me this:

<img style="width: 200px; height: 150px;" src="http://img1.jurko.net/wall/paper/donald_duck_4.jpg">

And with background-image I can cut the image 200x100 pixels.

<div 
    style="background-image:
           url('http://img1.jurko.net/wall/paper/donald_duck_4.jpg'); 
    width:200px; 
    height:100px; 
    background-position:center;">&nbsp;</div>

Gives me:

<div style="background-image:url('http://img1.jurko.net/wall/paper/donald_duck_4.jpg'); width:200px; height:100px; background-position:center;">&nbsp;</div>

How can I do both?
Resize the image and then cut it the size I want?

---

You could use a combination of both methods eg.

<div class="crop">
    <img src="..." alt="...">
</div>

CSS:

.crop {
    width: 200px;
    height: 150px;
    overflow: hidden;
}

.crop img {
    width: 400px;
    height: 300px;
    margin: -75px 0 0 -100px;
}

You can use negative margin to move the image around within the <div/> .

---

With CSS3 it's possible to change the size of a background-image with background-size , fulfilling both goals at once.

There are a bunch of examples on css3.info.

Implemented based on your example, using donald_duck_4.jpg. In this case, background-size: cover; is just what you want - it fits the background-image to cover the entire area of the containing <div> and clips the excess (depending on the ratio).

.with-bg-size {
  background-image: url('http://img1.jurko.net/wall/paper/donald_duck_4.jpg');
  width: 200px;
  height: 100px;
  background-position: center;
  /* Make the background image cover the area of the <div>, and clip the excess */
  background-size: cover;
}

<div class="with-bg-size">Donald Duck!</div>

css3 background-image background-size

---

Did you try to use this?

.centered-and-cropped { object-fit: cover }

I needed to resize image, center (both vertically and horizontally) and than crop it.

I was happy to find, that it could be done in a single css-line. Check the example here: http://codepen.io/chrisnager/pen/azWWgr/?editors=110

---

Here is the CSS and HTML code from that example:

CSS:

.centered-and-cropped { object-fit: cover }

HTML:

<h1>original</h1>
<img height="200" src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/3174/bear.jpg" alt="Bear">

<h1>object-fit: cover</h1>
<img class="centered-and-cropped" width="200" height="200" 
  style="border-radius:50%" src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/3174/bear.jpg" alt="Bear">

链接地址: http://www.djcxy.com/p/38794.html

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