diff --git a/docs/application/markdown-it-katex/support-function.md b/docs/application/markdown-it-katex/support-function.md
index 16fc11d9..088927d1 100644
--- a/docs/application/markdown-it-katex/support-function.md
+++ b/docs/application/markdown-it-katex/support-function.md
@@ -404,7 +404,11 @@ $\not =$ `\not =`
 | $\ngeq$ `\ngeq`           | $\nshortparallel$ `\nshortparallel` | $\nVdash$ `\nVdash`                     |
 | $\ngeqq$ `\ngeqq`         | $\nsim$ `\nsim`                     | $\precnapprox$ `\precnapprox`           |
 
-Direct Input: $∉ ∌ ∤ ∦ ≁ ≆ ≠ ≨ ≩ ≮ ≯ ≰ ≱ ⊀ ⊁ ⊈ ⊉ ⊊ ⊋ ⊬ ⊭ ⊮ ⊯ ⋠ ⋡ ⋦ ⋧ ⋨ ⋩ ⋬ ⋭ ⪇ ⪈ ⪉ ⪊ ⪵ ⪶ ⪹ ⪺ ⫋ ⫌$
+Direct Input:
+
+$$
+∉ ∌ ∤ ∦ ≁ ≆ ≠ ≨ ≩ ≮ ≯ ≰ ≱ ⊀ ⊁ ⊈ ⊉ ⊊ ⊋ ⊬ ⊭ ⊮ ⊯ ⋠ ⋡ ⋦ ⋧ ⋨ ⋩ ⋬ ⋭ ⪇ ⪈ ⪉ ⪊ ⪵ ⪶ ⪹ ⪺ ⫋ ⫌
+$$
 
 ### 10.2: Arrows