One frequent unpleasant side-effect of responsive design, is sites that resize themselves when you try to zoom the page. For images, this sometimes turns bizarre: If you try to zoom the current webpage to more clearly see details of an image, the web page will try to "help" you by resizing the image to continue to fit in your viewport. The net result is, that the image often gets even smaller when you try to zoom (because neighbour elements like text still grows). Reddit is one of the sites guilty of this. Worse, they even do it if you "open image in new tab". I have surrendered on this, and instead just DOWNLOAD the image to disk, to then reopen it in a separate tab, to finally zoom it.. Sigh.