Les box shadow

Text sample - Lorem ipsum
m-320 m-480 t-680 t-768 d-1024 d-1280 d-1440 d-1920
m-320-box-shadow-black-4 m-480-box-shadow-black-4 t-680-box-shadow-black-4 t-768-box-shadow-black-4 d-1024-box-shadow-black-4 d-1280-box-shadow-black-4 d-1440-box-shadow-black-4 d-1920-box-shadow-black-4