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://i.stack.imgur.com/wPh0S.jpg"> That gives me this: <img style="width: 200px; height: 150px;" src="https://i.stack.imgur.com/wPh0S.jpg"> And with background-image I can cut the image 200x100 pixels. <div style="background-image: url('https://i.stack.imgur.com/wPh0S.jpg'); width:200px; height:100px; background-position:center;"> </div> Gives me: <div style="background-image:url('https://i.stack.imgur.com/wPh0S.jpg'); width:200px; height:100px; background-position:center;"> </div> How can I do both? Resize the image and then cut it the size I want?
当前回答
你试过用这个吗?
.centered-and-cropped { object-fit: cover }
我需要调整图像的大小，中心(垂直和水平)，然后裁剪它。
我很高兴地发现，它可以在一个css行中完成。 在这里查看示例:http://codepen.io/chrisnager/pen/azWWgr/?editors=110
下面是这个例子的CSS和HTMLcode:
.居中剪裁{对象合身:封面} <标题>原始h1 > < / <img height="200" src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/3174/bear.jpg" alt="熊"> <标题> object-fit:封面h1 > < / <img class="center -and-裁剪" width="200" height="200" style="border-radius:50%" src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/3174/bear.jpg" alt="熊">
其他回答
您可以将img标记放在div标记中，但我建议不要在浏览器中缩放图像。它在大多数时候都做得很糟糕，因为浏览器的缩放算法非常简单。最好先在Photoshop或ImageMagick中进行缩放，然后将其漂亮地提供给客户端。
img {
position: absolute;
clip: rect(0px,60px,200px,0px);
}
如果您正在使用<img>标记，那么Object-fit可能会帮助您
下面的代码将为您裁剪图像。你可以尝试一下合身的衣服
img {
object-fit: cover;
width: 300px;
height: 337px;
}
我所做的是创建一个服务器端脚本，它将在服务器端调整大小和裁剪图片，这样它就会在互联网上发送更少的数据。
它相当简单，但如果有人感兴趣，我可以挖掘并发布代码(asp.net)
<p class="crop"><a href="http://templatica.com" title="Css Templates">
<img src="img.jpg" alt="css template" /></a></p>
.crop {
float: left;
margin: .5em 10px .5em 0;
overflow: hidden; /* this is important */
position: relative; /* this is important too */
border: 1px solid #ccc;
width: 150px;
height: 90px;
}
.crop img {
position: absolute;
top: -20px;
left: -55px;
}
