R – 2 colors + different weight on one element using spans

trying to get the span to use the lighter weigth and be a different color

sIFR.replace(xxx, {
selector: 'h1#logo',
css: [
'.sIFR-root { font-size:44px; font-weight:Bold; font-family : Gotham Bold; color:#17140c; letter-spacing:-2; text-transform: uppercase; margin: 0 !important;'
]

,filters: {
DropShadow: {
distance: 1
,color: '#f5f5f5'
,strength: 2
,alpha: .5
,blurX: 0
,blurY: 0

    }
  }

,wmode: 'transparent'
});

sIFR.replace(xxx, {
selector: 'h1#logo span.thin',
css: [
'.sIFR-root { font-size:14px; font-family : Gotham Light !important; color:#ddd; letter-spacing:-2; text-transform: uppercase; margin: 0 !important;'
]

,filters: {
DropShadow: {
distance: 1
,color: '#f5f5f5'
,strength: 2
,alpha: .5
,blurX: 0
,blurY: 0

    }
  }

,wmode: 'transparent'
});