An ugly hack could be inserting multiple times —statically— the same image (using multiple backgrounds):
E.g. To repeat horizontally an image (80x80) three times:
background-image: url('bg_texture.png'),
url('bg_texture.png'),
url('bg_texture.png');
background-repeat: no-repeat,
no-repeat,
no-repeat;
background-position: 0 top,
80px top,
160px top;
Beware: not working on IE under 9 version (source).
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