i see. i know that you can increase everything in the browser (font and pic) with the zoom buttons. didn't know you can do it by holding down the control button on the keyboard and move the mouse's wheel up. But i think i prefer the look of the font size increases but the picture's size doesn't enlarge because i want it to be in its native resolution. say if the picture is 640 x 480p, increases it by zooming in, the 480p will be blow up by stretching it out too 600p which isn't it native resolution though. Kind of like 480p is being upscale to 600p...
If the picture is 1080p, zooming it in will overscan the picture and reduces resolution detail as the picture is being blow up.