>>18Delet this whenever you're done(if you want to):
body{
background: rgb(0,0,0);
background-image: url('');
background-repeat: no-repeat;
background-attachment: fixed;
background-position: center;
}
add this to the stylesheet code in your setting.
the first line is for the color.
the second is for the image. put the link of your image in url(
) inside the for the rest you can google it.
exemple of ebic:
body{
background: rgb(128,255,0);
background-image: url('https://img.4plebs.org/boards/pol/image/1385/77/1385771357054.png');
background-repeat: no-repeat;
background-attachment: fixed;
background-position: center;
}