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vy le oai4,697 Points
background image doesn't scale to fit the site
Questoin: ".login-bg-wrap a img" work well on desktop with max-width set to 100%. But on narrower devices like iphone 6, the background images just scale to fit the width of view port, which make their height become smaller. I set heihgt to just 1% or 100% but they scale to their original size. I don't know why? And is there a way to make the height of these images fit the height of the site?
This is the expected behavior. When the viewport narrows, the image will scale height and width proportionately. If you want the entire area covered set your background-size property to cover. Of course, as the screen narrows more and more of the right side of the picture will be cut off but that's the trade-off.
If this is unacceptable, maybe use two different designs, something like a seamless tiling background or solid color as the default for smaller-width screens and then use a media query to display the picture for wider screens.