I'm working on a website www.pennect.com
i'm trying to figure out what size to use as the web banners. right now i'm using 1600x300, but i feel like that might not be ideal. it's looks fine on web browswer but when i view it on mobile devices it doesn't look so good. i can see when i shrink the desktop browswer there is a bunch of space below it. so it's not be resized the way i want it. i have the image as 1600x300 and the image slider at the same resolution. any ideas? Thanks!