@media (orientation: portrait) and (max-width: 700px)
 {
    .righttable 
    {
        width: 100%;
    }   
 }     

 @media (max-width: 700px)
 {
    #tdleft
    {
        width: 100%;
    }     
    
    .table1, .table1 tr, .table1 td 
    {       
        border: 0;        
    }
    .rightmaintable 
    {
        width: 100%;
    }
 }