Is it necessary for background images to be loaded on mobile devices within media queries in CSS3?

Assuming the following CSS:

div {background: #000}

@media (min-width: 1000px) {
     div {background: url(myimage.jpg)}
}

Would a smartphone with a width of 320px download the background image?

Thank you!

Answer №1

The downloading of images is based on the viewport width of the device. In most cases, only devices with a viewport width exceeding 1000px will fetch the image as shown above, though this is not a definite rule. For further insights, check out this intriguing study:

Answer №2

It is unlikely that smartphones with 320px screens will download myimage.jpg.

However, if you use dispaly:none within a media query, the image will still be downloaded for smaller screens, even if it is not visible.

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