diff --git a/css/subject.css b/css/subject.css
index 767740d..5267600 100644
--- a/css/subject.css
+++ b/css/subject.css
@@ -94,6 +94,7 @@
   padding-left: 34px;
   cursor: pointer;
   font-weight: 400;
+  font-size: 15px;
 }
 .body .left .item .img {
   width: 18px;
diff --git a/css/subject.less b/css/subject.less
index 9cbee35..919d2cd 100644
--- a/css/subject.less
+++ b/css/subject.less
@@ -100,6 +100,7 @@
             padding-left: 34px;
             cursor: pointer;
             font-weight: 400;
+            font-size: 15px;
             .img {
                 width: 18px;
                 margin-right: 12px;