From 4bfc43ef8de7c5e42f9502aa23075ee5fe04b26b Mon Sep 17 00:00:00 2001
From: Giteabot <teabot@gitea.io>
Date: Mon, 11 Mar 2024 17:10:07 +0800
Subject: [PATCH] Fix inconsistent rendering of block mathematical expressions
 (#29677) (#29711)

Backport #29677 by @yp05327

Fix #28735

GitHub render `\```math\``` ` as a block now.
Add `display` class will render it as a block.

After:

![image](https://github.com/go-gitea/gitea/assets/18380374/2a1c20c7-438e-4ab1-8c66-cf91c8343087)

![image](https://github.com/go-gitea/gitea/assets/18380374/b81b8a93-8bca-46a5-b7db-e0d2f53e1342)

Co-authored-by: yp05327 <576951401@qq.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
---
 modules/markup/markdown/markdown.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/modules/markup/markdown/markdown.go b/modules/markup/markdown/markdown.go
index 771162b9a3..8bf3ac1da2 100644
--- a/modules/markup/markdown/markdown.go
+++ b/modules/markup/markdown/markdown.go
@@ -103,7 +103,8 @@ func SpecializedMarkdown() goldmark.Markdown {
 							}
 
 							// include language-x class as part of commonmark spec
-							_, err = w.WriteString(`<code class="chroma language-` + string(language) + `">`)
+							// the "display" class is used by "js/markup/math.js" to render the code element as a block
+							_, err = w.WriteString(`<code class="chroma language-` + string(language) + ` display">`)
 							if err != nil {
 								return
 							}