Actually, The fix posted above does work in chrome, but kills the parallax scroll in firefox and ie –
The final solution was to add a class for the browser type with the global booleans and body_class filter (child them function), then add the CSS above using the selector .chrome .panel-image
//add browser class to body class
function browser_body_classes($classes) {
global $is_iphone, $is_chrome, $is_safari, $is_NS4, $is_opera, $is_macIE, $is_winIE, $is_gecko, $is_lynx, $is_IE, $is_edge;
if ($is_iphone) $classes[] = 'iphone-safari';
elseif ($is_chrome) $classes[] = 'chrome';
elseif ($is_safari) $classes[] = 'safari';
elseif ($is_NS4) $classes[] = ' netscape4';
elseif ($is_opera) $classes[] = 'opera';
elseif ($is_macIE) $classes[] = 'mac-ie';
elseif ($is_winIE) $classes[] = 'win-ie';
elseif ($is_gecko) $classes[] = 'firefox';
elseif ($is_lynx) $classes[] = 'lynx';
elseif ($is_IE) $classes[] = 'ie';
elseif ($is_edge) $classes[] = 'ms-edge';
else $classes[] = 'unk-browsr';
return $classes;
}
add_filter('body_class','browser_body_classes');