Different popup CSS styles for different layers in Leaflet

HTML

<script src="http://cdn.leafletjs.com/leaflet-0.7.3/leaflet.js"></script>
<link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.7.3/leaflet.css">
<div id="map"></div>

CSS

html,
body,
#map {
  height: 100%;
  width: 100%;
  padding: 0px;
  margin: 0px;
}

.tallPop {
  min-height: 400px;
}

.shortPop {
  min-height: 50px;
}

JavaScript

////////////////////////////////////////////////////////////////////////////////////////////
//setting up the map//
////////////////////////////////////////////////////////////////////////////////////////////

// set center coordinates
var coords = [34.069, -118.293];

// set default zoom level
var zoomLevel = 14;

// initialize map
var map = L.map('map').setView(coords, zoomLevel);

// set source for map tiles
ATTR = '&copy; <a href="http://openstreetmap.org">OpenStreetMap</a> contributors, ' +
  '<a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a> | ' +
  '&copy; <a href="http://cartodb.com/attributions">CartoDB</a>';
CDB_URL = 'http://{s}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}.png';

// add tiles to map
L.tileLayer(CDB_URL, {
  attribution: ATTR
}).addTo(map);

/////////////////////////////////////////////////////////////////////////////////////////////
//adding data//
/////////////////////////////////////////////////////////////////////////////////////////////

var points1 = getPoints1();
var points2 = getPoints2();

var tallIcon = L.icon({
  iconUrl: 'http://leafletjs.com/docs/images/leaf-green.png',
  shadowUrl: 'http://leafletjs.com/docs/images/leaf-shadow.png',
  iconSize: [38, 95],
  shadowSize: [50, 64],
  iconAnchor: [22, 94],
  shadowAnchor: [4, 62],
  popupAnchor: [-3, -76]
});

var tallPoints = L.geoJson(points1,{onEachFeature: onEachTall}).addTo(map);
var shortPoints = L.geoJson(points2,{onEachFeature: onEachShort}).addTo(map);

function onEachTall(feature, layer) {
  layer.bindPopup('<div class="tallPop">Tall Popup is Tall</div>');
  layer.setIcon(tallIcon);
}

function onEachShort(feature, layer) {
  layer.bindPopup('<div class="shortPop">Short Popup is not so Tall</div>');
}

/////////////////////////////////////////////////////////////////////////////////////////////
//data loading functions//
/////////////////////////////////////////////////////////////////////////////////////////////

function getPoints1() {
  var...