Can't get background right...

[Pumpkinosis]

So i'm having trouble with getting the background right, can anybody help me? I want it to repeat on the whole page.

Screenshots that might help:

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Tell me if there's anything missing,

 

[LewisBHS]

Just do

body{
background-image: url('../imagenes/bg.png');
}

 

[Sysode]

As mentioned above, apply the image to the body of the HTML document as apposed to a div tag.