html - Hybrid of percentage and fixed size div using increments -

i know whether possible have element percentage width closest x number (i.e. case 200).

the reason because have fluid div set 90% of browser window while have images @ 200px fill screen, because of odd sizes 830px left excess on right hand side.

i believe js achieve this?

you can use min-width, min-height, max-width, max-height. play around jsfiddle.fiddle