How to Dynamically Resize an Image to Fit the Browser Window?
How to Dynamically Resize an Image to Fit in the Browser Window
Encasing an image within a browser window while maintaining its aspect ratio, ensuring it's fully displayed, and preventing scrollbars often poses a challenge. To address these issues effectively, here are two comprehensive approaches.
1. CSS-Only Solution (2018 Update)
Leveraging CSS's grid layout and auto-margining capabilities, this method offers a comprehensive, CSS-only solution. The code snippet below dynamically centers and resizes the image to fit the browser window:
<code class="html"><div class="imgbox"> <img class="center-fit" src="pic.png"> </div></code>
CSS:
<code class="css"> * {
margin: 0;
padding: 0;
}
.imgbox {
display: grid;
height: 100%;
}
.center-fit {
max-width: 100%;
max-height: 100vh;
margin: auto;
}</code>2. JavaScript/jQuery Solution
This approach relies on jQuery to set the height of the image container dynamically, allowing the max-height property on the image to function as intended. The image adjusts its size automatically as the browser window is resized.
<code class="html"><body> <img class="center fit" src="pic.jpg"> </body></code>
<code class="javascript"> // Set body height to window height
function set_body_height() {
$('body').height($(window).height());
}
// On DOM ready and window resize, adjust body height
$(document).ready(function() {
$(window).bind('resize', set_body_height);
set_body_height();
});</code>Note: A similar solution is available as a jQuery plugin created by user gutierrezalex.
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