My current project involves supporting various pixel ratios on the website I am developing. I want to make sure that I include all necessary browser prefixes to ensure compatibility with a wide range of devices and browsers. While I am using SVGs whenever possible, I still need a solution for incorporating photographic images. My goal is to provide the following image options:
- @1x image (Pixel Ratio 1.0)
- @2x image (Pixel Ratio of 1.25+)
- @3x image (Pixel Ratio of 2.25+)
- @4x image (Pixel Ratio of 3.25+)
I am seeking advice on the best approach to writing media queries to achieve this goal. I want to ensure that my approach aligns with what I am trying to accomplish. Any suggestions or tips would be greatly appreciated. The code I currently have in place is as follows:
/* @1x Images (Pixel Ratio 1.0) */
#dgst_shopping_bag {background-image:url(img/shopping_bag.png);}
/* @2x Images (Pixel Ratio of 1.25+) */
@media only screen and (-o-min-device-pixel-ratio: 5/4),
only screen and (-webkit-min-device-pixel-ratio: 1.25),
only screen and (min-device-pixel-ratio: 1.25),
only screen and (min-resolution: 1.25dppx) {
#dgst_shopping_bag {background-image:url(img/example2x.jpg);}
}
/* @3x Images (Pixel Ratio of 2.25+) */
@media only screen and (-o-min-device-pixel-ratio: 9/4),
only screen and (-webkit-min-device-pixel-ratio: 2.25),
only screen and (min-device-pixel-ratio: 2.25),
only screen and (min-resolution: 2.25dppx) {
#dgst_shopping_bag {background-image:url(img/example3x.jpg);}
}
/* @4x Images (Pixel Ratio of 3.25+) */
@media only screen and (-o-min-device-pixel-ratio: 13/4),
only screen and (-webkit-min-device-pixel-ratio: 3.25),
only screen and (min-device-pixel-ratio: 3.25),
only screen and (min-resolution: 3.25dppx) {
#dgst_shopping_bag {background-image:url(img/example4x.jpg);}
}
Alternative 1: I am contemplating using the <picture> tag to tackle this challenge. One concern I have is providing alternative content for browsers that do not support <picture>. Do you believe that utilizing this tag would be the best practice for handling photos across multiple pixel ratios?