diff --git a/django/contrib/admin/static/admin/css/base.css b/django/contrib/admin/static/admin/css/base.css
index dc6e24a476d9..963adafaa049 100644
--- a/django/contrib/admin/static/admin/css/base.css
+++ b/django/contrib/admin/static/admin/css/base.css
@@ -776,12 +776,12 @@ ol.breadcrumbs a:focus, ol.breadcrumbs a:hover {
 
 .viewlink, .inlineviewlink {
     padding-left: 16px;
-    background: url(../img/icon-viewlink.svg) 0 1px no-repeat;
+    background: url(../img/icon-viewlink.svg) 0 center no-repeat;
 }
 
 .hidelink {
     padding-left: 16px;
-    background: url(../img/icon-hidelink.svg) 0 1px no-repeat;
+    background: url(../img/icon-hidelink.svg) 0 center no-repeat;
 }
 
 .addlink {
diff --git a/django/contrib/admin/static/admin/css/rtl.css b/django/contrib/admin/static/admin/css/rtl.css
index 4726aceb9c4d..9164aa0f4b75 100644
--- a/django/contrib/admin/static/admin/css/rtl.css
+++ b/django/contrib/admin/static/admin/css/rtl.css
@@ -16,7 +16,7 @@ th {
 .viewlink, .addlink, .changelink, .hidelink {
     padding-left: 0;
     padding-right: 16px;
-    background-position: 100% 1px;
+    background-position-x: 100%;
 }
 
 .deletelink {
diff --git a/django/core/serializers/xml_serializer.py b/django/core/serializers/xml_serializer.py
index 3d1f79ea0d00..5dfbb76a01cf 100644
--- a/django/core/serializers/xml_serializer.py
+++ b/django/core/serializers/xml_serializer.py
@@ -48,6 +48,10 @@ def start_serialization(self):
         """
         Start serialization -- open the XML document and the root element.
         """
+        # Increment the indent_level before each startElement() and decrement
+        # it following each endElement(). If the closing tag should appear on
+        # its own line, use self.indent(self.indent_level) before endElement().
+        self.indent_level = 0
         self.xml = SimplerXMLGenerator(
             self.stream, self.options.get("encoding", settings.DEFAULT_CHARSET)
         )
@@ -58,7 +62,7 @@ def end_serialization(self):
         """
         End serialization -- end the document.
         """
-        self.indent(0)
+        self.indent(self.indent_level)
         self.xml.endElement("django-objects")
         self.xml.endDocument()
 
@@ -71,7 +75,8 @@ def start_object(self, obj):
                 "Non-model object (%s) encountered during serialization" % type(obj)
             )
 
-        self.indent(1)
+        self.indent_level += 1
+        self.indent(self.indent_level)
         attrs = {"model": str(obj._meta)}
         if not self.use_natural_primary_keys or not self._resolve_natural_key(obj):
             obj_pk = obj.pk
@@ -84,15 +89,17 @@ def end_object(self, obj):
         """
         Called after handling all fields for an object.
         """
-        self.indent(1)
+        self.indent(self.indent_level)
         self.xml.endElement("object")
+        self.indent_level -= 1
 
     def handle_field(self, obj, field):
         """
         Handle each field on an object (except for ForeignKeys and
         ManyToManyFields).
         """
-        self.indent(2)
+        self.indent_level += 1
+        self.indent(self.indent_level)
         self.xml.startElement(
             "field",
             {
@@ -119,6 +126,7 @@ def handle_field(self, obj, field):
             self.xml.addQuickElement("None")
 
         self.xml.endElement("field")
+        self.indent_level -= 1
 
     def handle_fk_field(self, obj, field):
         """
@@ -144,6 +152,7 @@ def handle_fk_field(self, obj, field):
         else:
             self.xml.addQuickElement("None")
         self.xml.endElement("field")
+        self.indent_level -= 1
 
     def handle_m2m_field(self, obj, field):
         """
@@ -190,6 +199,8 @@ def queryset_iterator(obj, field):
             else:
 
                 def handle_m2m(value):
+                    # Put each object on its own line.
+                    self.indent(self.indent_level + 1)
                     self.xml.addQuickElement("object", attrs={"pk": str(value.pk)})
 
                 def queryset_iterator(obj, field):
@@ -208,14 +219,20 @@ def queryset_iterator(obj, field):
                 field.name,
                 queryset_iterator(obj, field),
             )
+            relobj = None
             for relobj in m2m_iter:
                 handle_m2m(relobj)
-
+            if relobj:
+                # If there are related objects (which appear each on their own
+                # line), put the closing </field> on the next line.
+                self.indent(self.indent_level)
             self.xml.endElement("field")
+            self.indent_level -= 1
 
     def _start_relational_field(self, field):
         """Output the <field> element for relational fields."""
-        self.indent(2)
+        self.indent_level += 1
+        self.indent(self.indent_level)
         self.xml.startElement(
             "field",
             {
diff --git a/tests/serializers/test_xml.py b/tests/serializers/test_xml.py
index 0ae66f77d018..884746dfac25 100644
--- a/tests/serializers/test_xml.py
+++ b/tests/serializers/test_xml.py
@@ -24,7 +24,10 @@ class XmlSerializerTestCase(SerializersTestBase, TestCase):
     <field name="author" rel="ManyToOneRel" to="serializers.author">%(author_pk)s</field>
     <field name="headline" type="CharField">Poker has no place on ESPN</field>
     <field name="pub_date" type="DateTimeField">2006-06-16T11:00:00</field>
-    <field name="categories" rel="ManyToManyRel" to="serializers.category"><object pk="%(first_category_pk)s"></object><object pk="%(second_category_pk)s"></object></field>
+    <field name="categories" rel="ManyToManyRel" to="serializers.category">
+      <object pk="%(first_category_pk)s"></object>
+      <object pk="%(second_category_pk)s"></object>
+    </field>
     <field name="meta_data" rel="ManyToManyRel" to="serializers.categorymetadata"></field>
     <field name="topics" rel="ManyToManyRel" to="serializers.topic"></field>
   </object>