Will images still be loaded within a hidden div in Bootstrap 3?

Creating a responsive website that features a large carousel with multiple images on the homepage.

My goal is to optimize image sizes for each device so that only the necessary image is downloaded, conserving bandwidth for mobile users.

To achieve this, I plan to use Bootstrap to display different images based on the device:

<img src=" http://placehold.it/1700x700" alt="Placeholder" class="visible-lg"/>
<img src=" http://placehold.it/1100x700" alt="Placeholder" class="visible-md"/>
<img src=" http://placehold.it/900x700" alt="Placeholder" class="visible-sm"/>
<img src=" http://placehold.it/768x700" alt="Placeholder" class="visible-xs"/>

I'm wondering if, when viewed on an xs device, all four images will be downloaded or just the appropriate one. What's the best approach to ensure only the necessary images are downloaded?

Your insights and advice are greatly appreciated!

htmlcsstwitter-bootstrap

Answer №1

Your example demonstrates loading all four images, causing inconvenience for mobile users and placing additional strain on your server. Responsive images is an area where a definitive "best solution" has yet to be reached, leaving many developers unsure of how to proceed.

In my experience, the 1.5x Hack tends to work effectively in most scenarios:

(found at the end of the article, but worthwhile to read from start to finish).

Answer №2

Don't forget to check out "responsiveimages.org" for a potential solution to this issue. It's always best to find a proper solution rather than resorting to hacks. Though my response may be belated, I wanted to share what I've been working on in tackling the same problem :-)

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