The resolution for the logo doesn't work


In the excercise it says lower your min-resolution dpi if you cannot see the change of the wings of the logo on the space ship I lowered to 5dpi that did not work I also just did 500dpi ; I’m on a MacBook Pro using safari I’ve been having problems seeing any relative change when I do code on here on code academy no longer going to use this more of just an information guide whenever I need to remember how to do something OR ill just try a different browser seems that this is the issue