fleat: update template

usr/themes/beardocs/index.php

@@ -18,7 +18,7 @@ if (!defined('__TYPECHO_ROOT_DIR__')) exit;
 ?>
     <style>
         .uk-card-index {
-            height: calc(33.33vh - 100px); /* 1/3 页面高度减去 80px */
+            height: calc(33.33vh - 80px); /* 1/3 页面高度减去 80px */
         }
     </style>
     <div class="uk-section uk-section-muted">