bgpos1 { background-position: 50%  }
bgpos2 { background-position: 50% 50%  }
bgpos3 { background-position: 10px  }
bgpos4 { background-position: 10px 50%  }
bgpos5 { background-position: 50%  }
bgpos6 { background-position: 50% 10px  }
bgpos7 { background-position: 10px  }
bgpos8 { background-position: 10px 10px }
bgpos9 { background-position: bottom   }
bgpos10 { background-position: bottom center   }
bgpos11 { background-position: bottom left   }
bgpos12 { background-position: bottom right   }
bgpos13 { background-position: center   }
bgpos14 { background-position: center bottom   }
bgpos15 { background-position: center center   }
bgpos16 { background-position: center left   }
bgpos17 { background-position: center right   }
bgpos18 { background-position: center top   }
bgpos19 { background-position: left   }
bgpos20 { background-position: left bottom   }
bgpos21 { background-position: left center   }
bgpos22 { background-position: left top   }
bgpos23 { background-position: right   }
bgpos24 { background-position: right bottom   }
bgpos25 { background-position: right center   }
bgpos26 { background-position: right top   }
bgpos27 { background-position: top   }
bgpos28 { background-position: top center   }
bgpos29 { background-position: top left   }
bgpos30 { background-position: top right }
