Please use a CSS below to make it responsible: 
 prediv.ui-popup-container{ 
  width:60%; 
  margin:auto;  
  left:20%!important; 
 }/pre
Please use a CSS below to make it responsible: 
 prediv.ui-popup-container{ 
  width:60%; 
  margin:auto;  
  left:20%!important; 
 }/pre