I am trying to size the banner in a Jackson theme on my site to fit to the 960px wrapper size have in customized folder in sites/all/themes/mytheme/styles/mytheme.css but no matter what I do the length won't change, only the height which makes no sense at all.
I have tried flushing the cache several times but still no changes take effect.
The code in jackson styles.css is
#banner-wrap {
background: transparent url(../images/main-sprite.png) repeat-x scroll center -90px;
height: 133px;
overflow: hidden;
width: 100%;
}
I have successfully changed the height but if I change width from 100% to 960px it does nothing.