body{ 
    margin: 0;
    padding: 0;  
                                          
    background-color: white;	    
 }

#left-column{
   width: 50%;
   float:left;
   background-color:aqua;     
}
#right-column img{
    width:230px;
    margin-left:140px;
    margin-top:100px;
    float: right;
}

img#logo{
   position:fixed;
   width:150px;
   bottom:20px;
   right:10px
}