配置html和css页面。

I am a newbie in ExpressJs. I have tried using html and css while building the app. But there is always asset-pipelining problem. Sometime css could not be loaded and sometime it does not get refreshed even if I restart the server. I have used static serve method. Still could not figure out the problem. Please help me out of this. I am a newbie in ExpressJs. I have tried using