#mycontainer {
 position:relative;
 top: 0;
 left: 0;
}
#products{
 visibility: hidden;
 position : relative;
 height: 1px;
 width: 144px;
 left: 0px;
 top: 0px;
}
#brands{
 visibility: hidden;
 position : absolute;
 height: 1px;
 width: 144px;
 left: 0px;
 top: 0px;
}

#audio_and_video{
 visibility: hidden;
 position : absolute;
 height: 1px;
 width: 144px;
 left: 146px;
 top: 0px;
}
#video{
 visibility: hidden;
 position : absolute;
 height: 1px;
 width: 144px;
 left: 292px;
 top: 10px;
}
#computer_and_peripherals{
 visibility: hidden;
 position : absolute;
 height: 1px;
 width: 144px;
 left: 146px;
 top: 0px;
}
#big_kitchen_appliances{
 visibility: hidden;
 position : absolute;
 height: 1px;
 width: 144px;
 left: 146px;
 top: 0px;
}
#small_kitchen_appliances{
 visibility: hidden;
 position : absolute;
 height: 1px;
 width: 144px;
 left: 146px;
 top: 0px;
}
#home_and_garden{
 visibility: hidden;
 position : absolute;
 height: 1px;
 width: 144px;
 left: 146px;
 top: 0px;
}