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How to auto-resize an image to fit a div container using CSS?
On a web page if you want to auto-resize an image to fit a div, you need to work around tne heigh, width, max-width and max-height properties. To auto-resize an image to fit a div container, we have set the following CSS properties on the img tag −
max-width: 100%; max-height: 100%;
Set an Image
First, we have set an image using the img tag in the div mydiv −
<div id="myDiv"> <img src="https://www.tutorialspoint.com/behave/images/behave.jpg"> </div>
Style the Container Height and Width
We have set the mydiv with height and width auto to allow auto-resize the div. If height: auto; the element will automatically adjust its height to allow its content to be displayed correctly as shown below −
#myDiv {
height: auto;
width: auto;
border: 2px solid blue;
}
Style the Image Inside the Container
Now, the image in our divv is set with the following CSS properties max-width and max-height to allow auto-resize without any problem −
#myDiv img {
max-width: 100%;
max-height: 100%;
margin: auto;
display: block;
}
Example
Let us now see the example to auto-resize an image to fit a div container using CSS −
<!DOCTYPE html>
<html>
<head>
<style>
#myDiv {
height: auto;
width: auto;
border: 2px solid blue;
}
#myDiv img {
max-width: 100%;
max-height: 100%;
margin: auto;
display: block;
}
</style>
</head>
<body>
<div id="myDiv">
<img src="https://www.tutorialspoint.com/behave/images/behave.jpg">
</div>
</body>
</html>
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