diff --git a/public/sass/hint.scss b/public/sass/hint.scss
new file mode 100644
index 0000000..c19b508
--- /dev/null
+++ b/public/sass/hint.scss
@@ -0,0 +1,52 @@
+@charset "utf-8";
+
+@import "colors";
+
+#searchMirror {
+  position: absolute;
+  margin-top: 1px;
+  white-space: nowrap;
+  overflow: show;
+  height: 0;
+  > span {
+    opacity: 0;
+    white-space: nowrap;
+    overflow: hidden;
+  }
+  > ul {
+    color: white;
+    margin: 0;
+    text-indent: 0;
+    display: inline-block;
+    background-color: $dark-green;
+    opacity: 0;
+    padding: 0;
+    padding-top: 5px;
+    padding-bottom: 10px;
+    border-bottom-left-radius: 10px;
+    border-bottom-right-radius: 10px;
+    > li {
+      list-style-type: none;
+      list-style-position: outside;
+      padding: 3pt 10pt;
+      text-shadow: none;
+      white-space: normal;
+      > span {
+        float: right;
+        margin-left: 30pt;
+        text-align: right;
+        font-style: italic;
+        color: #7ba400;
+      }
+      /* like sidebar ul li.active */
+      &.active {
+        background-color: #7ba400;
+        text-shadow: 1px 1px rgba(0, 0, 0, 0.4);
+        > span {
+          color: #496000;
+          text-shadow: none;
+        }
+      }
+    }
+  }
+}