diff --git a/_includes/styles/base.scss b/_includes/styles/base.scss
index c931ffa..19f3088 100644
--- a/_includes/styles/base.scss
+++ b/_includes/styles/base.scss
@@ -200,3 +200,9 @@ img.icon {
   width: 1em;
   height: 1em;
 }
+
+.tag {
+  padding: 0.1em 0.3em;
+  border: 1px solid var(--color-fg);
+  border-radius: 3px;
+}