diff --git a/packages/labextension/style/index.css b/packages/labextension/style/index.css
index 0a1e4ee2..1a25f684 100644
--- a/packages/labextension/style/index.css
+++ b/packages/labextension/style/index.css
@@ -82,7 +82,7 @@
 
 .nbdime-Diff .nbdime-header-local {
   display: none;
-  width: calc(49% - 8px);
+  width: calc(47% - 8px);
   padding: 0px 4px;
   vertical-align: top;
 }
diff --git a/packages/nbdime/src/styles/diff.css b/packages/nbdime/src/styles/diff.css
index f512dc4f..991c86f7 100644
--- a/packages/nbdime/src/styles/diff.css
+++ b/packages/nbdime/src/styles/diff.css
@@ -77,7 +77,7 @@
 
   .jp-Notebook-diff .jp-Diff-addremchunk .jp-Diff-addedchunk,
   .jp-Notebook-diff .jp-Diff-addremchunk .jp-Diff-removedchunk {
-    width: 49%;
+    width: 47%;
   }
 }
 
diff --git a/packages/webapp/src/app/diff.css b/packages/webapp/src/app/diff.css
index 2a9c13c3..01104ebb 100644
--- a/packages/webapp/src/app/diff.css
+++ b/packages/webapp/src/app/diff.css
@@ -25,7 +25,7 @@
 
 .nbdime-Diff #nbdime-header-local {
   display: none;
-  width: 49%;
+  width: 47%;
 }
 
 /* Comparing local vs remote */
diff --git a/ui-tests/tests/nbdime-diff-test1.spec.ts-snapshots/diff-test1-take-a-snapshot-at-opening-1-linux.png b/ui-tests/tests/nbdime-diff-test1.spec.ts-snapshots/diff-test1-take-a-snapshot-at-opening-1-linux.png
index cb674c0c..7ea63bba 100644
Binary files a/ui-tests/tests/nbdime-diff-test1.spec.ts-snapshots/diff-test1-take-a-snapshot-at-opening-1-linux.png and b/ui-tests/tests/nbdime-diff-test1.spec.ts-snapshots/diff-test1-take-a-snapshot-at-opening-1-linux.png differ
diff --git a/ui-tests/tests/nbdime-diff-test1.spec.ts-snapshots/diff-test1-take-a-snapshot-at-opening-1-win32.png b/ui-tests/tests/nbdime-diff-test1.spec.ts-snapshots/diff-test1-take-a-snapshot-at-opening-1-win32.png
index 94246be1..08bcd9a6 100644
Binary files a/ui-tests/tests/nbdime-diff-test1.spec.ts-snapshots/diff-test1-take-a-snapshot-at-opening-1-win32.png and b/ui-tests/tests/nbdime-diff-test1.spec.ts-snapshots/diff-test1-take-a-snapshot-at-opening-1-win32.png differ
diff --git a/ui-tests/tests/nbdime-diff-test2.spec.ts-snapshots/diff-test2-take-a-snapshot-at-opening-1-linux.png b/ui-tests/tests/nbdime-diff-test2.spec.ts-snapshots/diff-test2-take-a-snapshot-at-opening-1-linux.png
index 6534b3d4..d27fc9e8 100644
Binary files a/ui-tests/tests/nbdime-diff-test2.spec.ts-snapshots/diff-test2-take-a-snapshot-at-opening-1-linux.png and b/ui-tests/tests/nbdime-diff-test2.spec.ts-snapshots/diff-test2-take-a-snapshot-at-opening-1-linux.png differ
diff --git a/ui-tests/tests/nbdime-diff-test2.spec.ts-snapshots/diff-test2-take-a-snapshot-at-opening-1-win32.png b/ui-tests/tests/nbdime-diff-test2.spec.ts-snapshots/diff-test2-take-a-snapshot-at-opening-1-win32.png
index 6989c02e..f2a421bf 100644
Binary files a/ui-tests/tests/nbdime-diff-test2.spec.ts-snapshots/diff-test2-take-a-snapshot-at-opening-1-win32.png and b/ui-tests/tests/nbdime-diff-test2.spec.ts-snapshots/diff-test2-take-a-snapshot-at-opening-1-win32.png differ