var screenXs="360px";
var screenSm="641px";
var screenMd="1008px";
var screenLg="1400px";
  
var screenXsMin="360px";
var screenSmMin="641px";
var screenMdMin="1008px";
var screenLgMin="1400px";

var screenXsMax="640px";
var screenSmMax="1007px";
var screenMdMax="1399px";