css - Background for html back that is fixed for the screen -


i'm working on basic html page , have background image bg.jpg. problem depending on screen size have , how many pixels screen has i'm not able view whole background image want.

how make background fixed can see whole background?

if mean full page background image can css3 background-size property

body {    background: url(bg.jpg) no-repeat center center fixed;    -webkit-background-size: cover;   -moz-background-size: cover;   -o-background-size: cover;   background-size: cover; }

if need attach it, kinda fixed , shouldn't scrolled, use

background-attachment: fixed;  /* used in above css declaration using css short hand*/

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