#eventtable {
                height:250px;
                overflow-y:auto; 
                 overflow-x:hidden;   
                margin-top:0px;
                  }              
   
 #eventtable table {
                 width:100%;
                 color:#000;    
                 }      
               
               
#grp_table {
                height:400px;
                overflow-y:auto; 
                 overflow-x:hidden;   
                margin-top:0px;
                  }              
   
 #grp_table table {
                 width:100%;
                 color:#000;    
                 }