title: popper.js shows up without any style
body: <p>I'm developing an ASP.net-mvc web-app which will be used locally therefore  it doesn't have access to internet.
  I used "popper.js" library ,it works properly but popup's don't have any style ( no background-color , no arrow , .. )</p>
  
  <p>For first time I used nuget PM but it didn't change then
  I tried to add "popper.css" manually , in this case if i add "popper" class to reference object , background and corners would show up correctly but arrow still doesn't show up. 
  i guess js file can't access to style and image files , it probably have a collection of css and images in structural folders but i don't know how could i find these files and where should i put them ?</p>