.icon-big{
     padding:0px 5px 0px 0px;
     height:40px;
     width:45px;    
}
.icon-small{
     padding:0px 5px 0px 0px;
     height:30px;
     width:35px;    
}
.icon-smaller{
     padding:0px 5px 0px 0px;
     height:20px;
     width:25px;    
}