If I have an image that needs to be resized to 30% of its original size without knowing the height or width, how can this be achieved using just CSS and HTML?
If I have an image that needs to be resized to 30% of its original size without knowing the height or width, how can this be achieved using just CSS and HTML?
For a fast and simple way to embed an image directly into your content:
<img style="max-width: 150px; height: auto; " src="picture.jpg" />
Latest Update:
By utilizing a wrapper with the CSS property display: inline-block;, achieving this effect using only CSS becomes feasible.
HTML Code Snippet
<div class="holder">
<img src="your-image.jpg" />
</div>
CSS Styling
.holder {
width: auto;
display: inline-block;
}
.holder img {
width: 30%; /* This will resize the image to 30% of its original width */
height: auto;
}
The wrapper assumes the initial width of the image, and then the CSS rule width: 30% on the images reduces their size to 30% of the parent's width (which was originally their width).
Check out a live demonstration here.
Unfortunately, there isn't a native HTML/CSS method for performing such calculations as they are not designed for that purpose. However, it can be easily achieved with a simple jQuery script:
$('img.toResizeClass').each(function(){
var $img = $(this),
imgWidth = $img.width(),
imgHeight = $img.height();
if(imgWidth > imgHeight){
$img.width(imgWidth * 0.3);
} else {
$img.height(imgHeight * 0.3);
}
});
<img style="max-width: 100%; height: auto; " src="image.jpg" />
Utilizing a percentage for the max-width property is quite effective and visually appealing.
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