div[category=Columns-Proportional]{
    position:relative;
    width:100%;
    height:68%;
    background-color:white;
    overflow:hidden;
}
div[category=Columns-Proportional] > div{
    position:relative;
    width:49%;
    height:100%;
    background-color:yellow;
    padding-left:1%;
    padding-top:1%;
    overflow:hidden;
}

 div[category=Columns-Proportional] > div[item=part1]{ 
    background-color:whitesmoke;
    float:left;
   
}


div[category=Columns-Proportional] > div[item=part2]{  
    background-color:white;
    float:right;
}

/*************************************************/
div[category=Columns-Tripple]{
    position:relative;
    width:100%;
    height:68%;
    background-color:white;
    overflow:hidden;
}
div[category=Columns-Tripple] > div{
    position:relative;
    width:32.333%;
    height:100%;
    padding-left:1%;
    padding-top:1%;
    overflow:hidden;
}

 div[category=Columns-Tripple] > div[item=part1]{ 
    background-color:white;
    float:left;
   
}
div[category=Columns-Tripple] > div[item=part2]{  
    background-color:whitesmoke;
    float:left;
}
div[category=Columns-Tripple] > div[item=part3]{  
    background-color:white;
    float:left;
}

/************************************************/