diff --git a/mutmut/__main__.py b/mutmut/__main__.py
index 9884cb68..4322d2b6 100644
--- a/mutmut/__main__.py
+++ b/mutmut/__main__.py
@@ -1461,7 +1461,9 @@ def browse():
     from textual.containers import Container
     from textual.widgets import Footer
     from textual.widgets import DataTable
-    from textual.widgets import TextArea
+    from textual.widgets import Static
+    from textual.widget import Widget
+    from rich.syntax import Syntax
 
     class ResultBrowser(App):
         loading_id = None
@@ -1488,7 +1490,8 @@ def compose(self):
             with Container(classes='container'):
                 yield DataTable(id='files')
                 yield DataTable(id='mutants')
-            yield TextArea(id='diff_view')
+            with Widget(id="diff_view_widget"):
+                yield Static(id='diff_view')
             yield Footer()
 
         def on_mount(self):
@@ -1547,9 +1550,9 @@ def on_data_table_row_highlighted(self, event):
                 assert event.data_table.id == 'mutants'
                 diff_view = self.query_one('#diff_view')
                 if event.row_key.value is None:
-                    diff_view.text = ''
+                    diff_view.update('')
                 else:
-                    diff_view.text = '<loading...>'
+                    diff_view.update('<loading...>')
                     self.loading_id = event.row_key.value
 
                     def load_thread():
@@ -1557,9 +1560,9 @@ def load_thread():
                         try:
                             d = get_diff_for_mutant(event.row_key.value)
                             if event.row_key.value == self.loading_id:
-                                diff_view.text = d
+                                diff_view.update(Syntax(d, "diff"))
                         except Exception as e:
-                            diff_view.text = f'<{type(e)} {e}>'
+                            diff_view.update(f"<{type(e)} {e}>")
 
                     t = Thread(target=load_thread)
                     t.start()
diff --git a/mutmut/result_browser_layout.tcss b/mutmut/result_browser_layout.tcss
index b40dda59..d3672f88 100644
--- a/mutmut/result_browser_layout.tcss
+++ b/mutmut/result_browser_layout.tcss
@@ -24,3 +24,12 @@ DataTable:focus .datatable--cursor {
     color: black;
     background: orange;
 }
+
+#diff_view_widget{
+    height: 50%;
+ border: solid;
+ overflow-y: scroll;
+}
+
+#diff_view{
+}