Added tutorial and session mechanism
diff --git a/public/scss/query.scss b/public/scss/query.scss
new file mode 100644
index 0000000..4167059
--- /dev/null
+++ b/public/scss/query.scss
@@ -0,0 +1,24 @@
+@import "util";
+@charset "utf-8";
+
+
+pre.query {
+ overflow-x: hidden;
+ cursor: pointer;
+ padding: .5em;
+ @include choose-item;
+ position:relative;
+ border: {
+ width: 2px;
+ style: solid;
+ radius: $standard-border-radius;
+ }
+ box-shadow: $choose-box-shadow;
+
+ &:hover {
+ @include choose-hover;
+ }
+ &:active {
+ @include choose-active;
+ }
+}