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;">&nbsp;</div> Gives me: <div style="background-image:url('https://i.stack.imgur.com/wPh0S.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?


当前回答

谢谢sanchothefat。

我对你的回答有改进的地方。由于裁剪是非常适合每一个图像,这个定义应该在HTML而不是CSS。

<div style="overflow:hidden;">
   <img src="img.jpg" alt="" style="margin:-30% 0px -10% 0px;" />
</div>

其他回答

在裁剪类中,放置你想要显示的图像大小:

.crop {
    width: 282px;
    height: 282px;
    overflow: hidden;
}
.crop span.img {
    background-position: center;
    background-size: cover;
    height: 282px;
    display: block;
}

html看起来像这样:

<div class="crop">
    <span class="img" style="background-image:url('http://url.to.image/image.jpg');"></span>
</div>

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。

你可以把两种方法结合起来使用。

.crop { 宽度:200 px; 身高:150 px; 溢出:隐藏; } .crop img { 宽度:400 px; 身高:300 px; Margin: -75px 00 -100px; } < div class = "作物”> <img src="https://i.stack.imgur.com/wPh0S.jpg" alt="唐老鸭"> < / div >

您可以使用负边距在<div/>内移动图像。

谢谢sanchothefat。

我对你的回答有改进的地方。由于裁剪是非常适合每一个图像,这个定义应该在HTML而不是CSS。

<div style="overflow:hidden;">
   <img src="img.jpg" alt="" style="margin:-30% 0px -10% 0px;" />
</div>
img {
    position: absolute;
    clip: rect(0px,60px,200px,0px);
}