From e642b8e7773b277d86013d083275384bcc872b3e Mon Sep 17 00:00:00 2001
From: Anders Kaseorg <anders@zulip.com>
Date: Fri, 26 Mar 2021 17:35:00 -0700
Subject: [PATCH] rendered_markdown: Add horizontal scrollbar to overflowing
 ```math.

Fixes #14422.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
---
 static/styles/rendered_markdown.css | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/static/styles/rendered_markdown.css b/static/styles/rendered_markdown.css
index 23670657d8..13f204822e 100644
--- a/static/styles/rendered_markdown.css
+++ b/static/styles/rendered_markdown.css
@@ -156,7 +156,12 @@
 
     /* LaTeX styling */
     .katex-display {
-        margin: 0 0;
+        /* KaTeX sometimes overdraws its bounding box by a little, so we
+           enlarge its scrolling area by stealing 3px from the margin
+           of the enclosing <p>. */
+        margin: -3px 0;
+        padding: 3px 0;
+        overflow: auto hidden;
     }
 
     .tex-error {