how do i make make height and wisdth full screen

Question

I dont know why but my website's css work good only if the screen is on f11 mode. also my background img cut from buttom. help pls.

body {
    background-image: url("bg/logo.jpg");
     margin: 0;
     cursor: url("icon/owcursor.png"), auto;
overflow: hidden; 
}

Answer 1

I think this is what you are looking for. Width: 100%; Height: 100%;

Answer 2

Based on your information, you can use:

height: 100vh; width: 100vw;