diff --git a/boards/static/css/pg/base_page.css b/boards/static/css/pg/base_page.css
--- a/boards/static/css/pg/base_page.css
+++ b/boards/static/css/pg/base_page.css
@@ -306,3 +306,12 @@ input[type="submit"]:hover {
 .form-email {
     display: none;
 }
+
+.mark_btn {
+    padding: 2px 4px;
+    border: 1px solid;
+}
+
+.mark_btn:hover {
+    background: #ccc;
+}
\ No newline at end of file