Define client caching in Web Config in ASP.Net

How to define caching in web config

When i add this code and host my shared hosting then no css js work everything is remove

<staticContent>
    <clientCache cacheControlMode="UseMaxAge" cacheControlMaxAge="30.00:00:00" />
    <clientCache cacheControlMode="UseExpires" httpExpires="Fri, 9 Oct 2020 00:00:00 UTC" />
</staticContent>