html - Background image resizing -

html - Background image resizing -

i'am trying design website background image should stretch in height , width accordingly when browser window resizing. complicated explain exact behaviour achieve, reason here website perfectly:

http://de.wix.com/website-template/view/html/709?originurl=http%3a%2f%2fde.wix.com%26number-of-page%3d1%26position-in-page%3d4

i used background-size set possible background-width set 100%, not accomplish such behaviour.

have tried using below css? fills page background image.

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

html css