dwim.diff

diff --git a/lib/Mojo/DOM.pm b/lib/Mojo/DOM.pm
index 38e1949..3aa7671 100644
--- a/lib/Mojo/DOM.pm
+++ b/lib/Mojo/DOM.pm
@@ -167,7 +167,8 @@ sub xml { shift->_delegate(xml => @_) }
 sub _add {
   my ($self, $offset, $new) = @_;
 
-  return $self if (my $tree = $self->tree)->[0] eq 'root';
+  my $tree = $self->tree;
+  return $self->_content($offset, 0, $new) if $tree->[0] eq 'root';
 
   my $parent = $self->_parent;
   splice @$parent, _offset($parent, $tree) + $offset, 0,
diff --git a/t/mojo/dom.t b/t/mojo/dom.t
index 2171a2f..60cf9fe 100644
--- a/t/mojo/dom.t
+++ b/t/mojo/dom.t
@@ -1246,53 +1246,57 @@ is "$dom", <<EOF, 'right result';
 EOF
 is $dom->at('div')->text, 'A-1', 'right text';
 is $dom->at('iv'), undef, 'no result';
-$dom->prepend('l')->prepend('alal')->prepend('a');
+$dom->prepend('a')->prepend('alal')->prepend('l');
 is "$dom", <<EOF, 'no change';
-<ul>
+lalala<ul>
     24<div>A-1</div>25<li>A</li><p>A1</p>23
     <p>B</p>
     <li>C</li>
 </ul>
 <div>D</div>
 EOF
-$dom->append('lalala');
+$dom->append("lala")->append("la\n");
 is "$dom", <<EOF, 'no change';
-<ul>
+lalala<ul>
     24<div>A-1</div>25<li>A</li><p>A1</p>23
     <p>B</p>
     <li>C</li>
 </ul>
 <div>D</div>
+lalala
 EOF
 $dom->find('div')->each(sub { shift->append('works') });
 is "$dom", <<EOF, 'right result';
-<ul>
+lalala<ul>
     24<div>A-1</div>works25<li>A</li><p>A1</p>23
     <p>B</p>
     <li>C</li>
 </ul>
 <div>D</div>works
+lalala
 EOF
 $dom->at('li')->prepend_content('A3<p>A2</p>')->prepend_content('A4');
 is $dom->at('li')->text, 'A4A3 A', 'right text';
 is "$dom", <<EOF, 'right result';
-<ul>
+lalala<ul>
     24<div>A-1</div>works25<li>A4A3<p>A2</p>A</li><p>A1</p>23
     <p>B</p>
     <li>C</li>
 </ul>
 <div>D</div>works
+lalala
 EOF
 $dom->find('li')->[1]->append_content('<p>C2</p>C3')->append_content(' C4')
   ->append_content('C5');
 is $dom->find('li')->[1]->text, 'C C3 C4C5', 'right text';
 is "$dom", <<EOF, 'right result';
-<ul>
+lalala<ul>
     24<div>A-1</div>works25<li>A4A3<p>A2</p>A</li><p>A1</p>23
     <p>B</p>
     <li>C<p>C2</p>C3 C4C5</li>
 </ul>
 <div>D</div>works
+lalala
 EOF
 
 # Optional "head" and "body" tags