Remove redundant ul, id -> class

css/app.css

@@ -930,7 +930,7 @@ img.tile {
     color:#fff;
 }
 
-#user-list a:not(:last-child):after {
+.user-list a:not(:last-child):after {
     content: ', ';
 }
 

js/id/ui.js

@@ -70,12 +70,8 @@ iD.ui = function(context) {
             .on('logout.editor', connection.logout)
             .on('login.editor', connection.authenticate));
 
-        var aboutList = about.append('ul')
-            .attr('id','about')
-            .attr('class', 'link-list');
-
-        var linkList = aboutList.append('ul')
-            .attr('id','about')
+        var linkList = about.append('ul')
+            .attr('id', 'about')
             .attr('class', 'pad1 fillD about-block link-list');
 
         linkList.append('li')
@@ -91,7 +87,7 @@ iD.ui = function(context) {
             .text(t('report_a_bug'));
 
         linkList.append('li')
-            .attr('id', 'attribution')
+            .attr('class', 'attribution')
             .call(iD.ui.Attribution(context));
 
         linkList.append('li')
@@ -99,7 +95,7 @@ iD.ui = function(context) {
             .call(iD.ui.SourceSwitch(context));
 
         linkList.append('li')
-            .attr('id', 'user-list')
+            .attr('class', 'user-list')
             .call(iD.ui.Contributors(context));
 
         window.onbeforeunload = function() {

js/id/ui/layerswitcher.js

@@ -92,7 +92,7 @@ iD.ui.LayerSwitcher = function(context) {
                     return d === context.background().source();
                 });
 
-            var provided_by = context.container().select('#attribution .provided-by')
+            var provided_by = context.container().select('.attribution .provided-by')
                 .html('');
 
             if (d.data.terms_url) {