function cssStyle2DomStyle(sName) {
var res = ''
var first = true
sName.replace(/(\w+)/g, function () {
console.log(arguments[0])
if (first) {
res += arguments[0]
first = false
} else {
res += (arguments[0].slice(0, 1)).toUpperCase() + arguments[0].slice(1)
}
})
return res
}
console.log(cssStyle2DomStyle('font-size'))