Gap between slides

[VitaliyAT]

Can't understand how I can do gap (space) between slides like on www.iosscripts.com/iosslider/ And by what logic it realized. Margings is AUTO. If I change margings by additional css or script I loose grid - one slide go on another.

From examples: comparing 7-1 and 7-2 I see only stageCSS option, if comment it - nothing happened. In 7-2 I see that pictures on background have width 900px actual size, but divs for them 1000px.

When I try look at site's page source of html/css I don't see anything special - no margings (auto), no paddings.

What I understand is that width of '.slider' = 5000px ( - in 7-2 example, and 6000px on site) came from js.

How I can do correct tuning? Could you help me?