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
尝试使用clip-path属性:
剪切路径属性允许您将元素剪切为基本形状或 SVG源代码。 注意:clip-path属性将替换已弃用的剪辑 财产。
img { 宽度:150 px; 剪辑路径:插入(30px 35px); } < img src = " http://i.stack.imgur.com/wPh0S.jpg " >
这里有更多的例子。
其他回答
使用CSS3,可以通过background-size来改变背景图像的大小,同时实现这两个目标。
在css3.info上有很多例子。
基于您的示例实现,使用donald_duck_4.jpg。在本例中,background-size: cover;正是你想要的-它适合背景图像覆盖整个区域的包含<div>和剪辑多余的部分(取决于比例)。
.with-bg-size { 背景图片:url (https://i.stack.imgur.com/wPh0S.jpg); 宽度:200 px; 身高:100 px; 背景位置:中心; /*使背景图像覆盖<div>的区域,并剪辑多余的*/ background-size:封面; } <div class="with-bg-size">唐老鸭!< / div >
Css3 background-image background-size
生活例子: https://jsfiddle.net/de4Lt57z/
HTML:
<div class="crop">
<img src="example.jpg" alt="..." />
</div>
CSS:
.crop img{
width:400px;
height:300px;
position: absolute;
clip: rect(0px,200px, 150px, 0px);
}
解释: 在这里,图像是根据图像的宽度和高度值调整大小。裁剪是通过剪辑属性完成的。
有关剪辑属性的详细信息请参见: http://tympanus.net/codrops/2013/01/16/understanding-the-css-clip-property/
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。
<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;
}
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>