diff --git a/src/styles.css b/src/styles.css
index 7ef1b9d..7bfd18e 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -1,6 +1,20 @@
 @import "tailwindcss";
 @plugin "@tailwindcss/typography";
 
+/* icon */
+icon{
+    @apply inline-block;
+    width: 1em;
+    height: 1em;
+    --icon-src: '';
+    background: var(--icon-src);
+    background-size: contain;
+    background-position: center;
+    background-repeat: no-repeat;
+}
+
+/* prose */
+
 @utility prose {
     @apply prose-h2:first:mt-0 prose-h3:first:mt-0 prose-h4:first:mt-0 prose-h5:first:mt-0;
     code{