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Hidden/Visible Twitter Bootstrap

OliverB
in Frontend

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Hi everyone,

 

I'm just wondering if browsers only download the code required (regarding page size) when you've set the div to be hidden/visible?

 

For example...

 

<div class="only visible on desktop"> Large image </div>

<div class="only visible on phone"> Small image </div>

 

So I only want the large image visible on the desktop and the small image visible on phones. I know how to do this properly, this is just an example.

 

Anyway, the question is when viewing on the desktop does the hidden code get downloaded and add to the page size? OR does it just download what is needed, resulting in a smaller page size?

 

I hope I'm explaining myself correctly, it's been a long day!

 

Thanks

Edited by OliverB

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