I'm not a web developer and I've only used CSS once in the past. What is the process for using CSS? Is this even possible?
var pointsSheet = SpreadsheetApp.openById('1o8_f063j1jYZjFEnI_P7uAztpnEAvQ6mc3Z1_Owa69Y');
//creates and shows an app with a label and password text box
function doGet() {
  var app = UiApp.createApplication();
  var mygrid = app.createGrid(1, 2);
  mygrid.setWidget(0, 0, app.createLabel('Password:'));
  mygrid.setWidget(0, 1, app.createPasswordTextBox().setName("text"));
  var mybutton = app.createButton('Submit');
  var submitHandler = app.createServerClickHandler('getResults');
  submitHandler.addCallbackElement(mygrid);
  mybutton.addClickHandler(submitHandler);
  var mypanel = app.createVerticalPanel();
  mypanel.add(mygrid);
  mypanel.add(mybutton);
  app.add(mypanel);
  return app; //UNCOMMENT WHEN DEPLOYING APP
}
//obtains data based on password entered by user and outputs their info
function getResults(eventInfo) {
  var app = UiApp.getActiveApplication();
  var password = eventInfo.parameter.text;
  var passwordCheckRange = pointsSheet.getRange("B34:C34").getValues();
  if (passwordCheckRange == null) {
    return app;
  }
  var name;
  var studentFound = false;
  for(var i = 0; i < passwordCheckRange.length; i++) {//obtains the name of the student
    if(passwordCheckRange[i][1] == password) {
      name = passwordCheckRange[i][0];
      studentFound = true;
      break;
    }
  }
  var studentRecordRange = pointsSheet.getRange("B3:CZ29").getValues();
  var headingRange = pointsSheet.getRange("B1:CZ2").getValues();
  if (studentRecordRange == null) {
    return app;
  }
  var studentRecord;
  for(var i = 0; i < studentRecordRange.length; i++) {
    if(studentRecordRange[i][0] == name)
      studentRecord = studentRecordRange[i]; //gets the row of the student (B? to AY?)
  }
  var stringRecord = "";
  for(var i = headingRange[1].length-1; i >= 7; i--) {
    if ((studentRecord[i] == "" || studentRecord[i] == "STOP" || studentRecord[i] == "ALLOW") && headingRange[0][i] != "")
      stringRecord += headingRange[1][i] + ": " + headingRange[0][i] + "XP" + "<br>";
  }
  var mygrid = app.createGrid(2, 1);
  mygrid.setWidget(0, 0, app.createLabel('INCOMPLETE CHALLENGES'));
  mygrid.setWidget(1, 0, app.createHTML(stringRecord));
  var mypanel = app.createVerticalPanel();
  mypanel.add(mygrid);
  app.add(mypanel);
  return app;
}
 
     
    