diff --git a/src/editor/_code.scss b/src/editor/_code.scss
index bc9e03e..838a4e1 100644
--- a/src/editor/_code.scss
+++ b/src/editor/_code.scss
@@ -41,6 +41,8 @@ body {
   white-space: pre;
   word-break: normal;
   overflow-wrap: normal;
-  width: max-content;
-  min-width: 100%;
+  width: auto;
+  min-width: 0;
+  overflow-x: auto;
+  overflow-y: hidden;
 }
diff --git a/tests/editor-blocks.test.mjs b/tests/editor-blocks.test.mjs
index 61becc1..4553403 100644
--- a/tests/editor-blocks.test.mjs
+++ b/tests/editor-blocks.test.mjs
@@ -237,8 +237,10 @@ test("keeps CM6 fenced code lines on one horizontal line", () => {
       ["white-space", "pre"],
       ["word-break", "normal"],
       ["overflow-wrap", "normal"],
-      ["width", "max-content"],
-      ["min-width", "100%"],
+      ["width", "auto"],
+      ["min-width", "0"],
+      ["overflow-x", "auto"],
+      ["overflow-y", "hidden"],
     ],
   );
 });
diff --git a/theme.css b/theme.css
index cfab98e..fd7eb1a 100644
--- a/theme.css
+++ b/theme.css
@@ -297,8 +297,10 @@ body {
   white-space: pre;
   word-break: normal;
   overflow-wrap: normal;
-  width: max-content;
-  min-width: 100%;
+  width: auto;
+  min-width: 0;
+  overflow-x: auto;
+  overflow-y: hidden;
 }
 
 body {