Solution 1 :

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

Solution 2 :

Based on your information, you can use:

height: 100vh;
width: 100vw;

Problem :

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; 


Comment posted by Paulie_D

Please clarify your specific problem or add additional details to highlight exactly what you need. As it’s currently written, it’s hard to tell exactly what you’re asking.

Comment posted by דין ודברים

hi. no. some why the css work like the page isnoy 1920×1080 and if i write Width: 1920px; Height: 1080px; its make scroller and idont wanjt scroller

Comment posted by Christie

Like others have said, you need to provide more details.

Comment posted by דין ודברים

the google count the toolbar and this stuff also from the website