diff --git a/public/static/index/pc/css/topic_ssd/index.css b/public/static/index/pc/css/topic_ssd/index.css
index 801370cd..0adc1a02 100644
--- a/public/static/index/pc/css/topic_ssd/index.css
+++ b/public/static/index/pc/css/topic_ssd/index.css
@@ -44,7 +44,7 @@ img {
     margin-top: 0.2rem;
 }
 .sc-mb-78 {
-    margin-top: 0.78rem;
+    margin-bottom: 0.78rem;
 }
 .sc-main-imgs {
     display: grid;