问题
In the past I had seen occasions where images that weren't 72 dpi wouldn't show in some web browsers, primarily Internet Explorer 7. However, weird thing is, I have tested this lately and it appears that images of 300dpi are showing in IE.
Does DPI matter anymore for web? Will photos of some DPIs not display in some web browers?
回答1:
No, it doesn't and it never matter. DPI only matters for printing.
来源：https://stackoverflow.com/questions/3803644/does-image-dpi-matter-to-web-browsers