Update pub.css

Author: suan12

cssjs/pub.css

@@ -1,12 +1,14 @@
 .year-filter {
-  margin-bottom: 20px;
+  text-align: center; /* 按钮内容居中 */
+  margin-bottom: 2px;
 }
 .year-filter button {
   margin: 5px;
   padding: 10px;
   cursor: pointer;
   border: 1px solid #ccc;
   background-color: #f9f9f9;
+  font-size: 20px; /* 字体大小为 24px */
 }
 .year-filter button.active {
   background-color: #007bff;