MVC: Styles is not applied on layout

If your styles are not applied and you got 404 error message and your file path is correct, just change the following path in your web.config:

<add name="BlockViewHandler" path="*" verb="*" preCondition="integratedMode" type="System.Web.HttpNotFoundHandler" />

to

<add name="BlockViewHandler" path="*.cshtml" verb="*" preCondition="integratedMode" type="System.Web.HttpNotFoundHandler" />