public/javascript/libs/spin.js
function css(el, prop) {
    for (var n in prop)
      el.style[vendor(el, n)||n] = prop[n]

    return el
  }
function css(el, prop) {
    for (var n in prop)
      el.style[vendor(el, n)||n] = prop[n]

    return el
  }
Sets multiple style properties at once.