doce(readme): add used classes

src/style.css

@@ -66,16 +66,6 @@
   }
 }
 
-.react-flow__connection {
-  pointer-events: none;
-}
-
-.react-flow__connection-path {
-  fill: none;
-  stroke: #ddd;
-  stroke-width: 2;
-}
-
 .react-flow__edge-path {
   fill: none;
   stroke: #bbb;
@@ -91,6 +81,16 @@
   fill: white;
 }
 
+.react-flow__connection {
+  pointer-events: none;
+}
+
+.react-flow__connection-path {
+  fill: none;
+  stroke: #ddd;
+  stroke-width: 2;
+}
+
 .react-flow__nodes {
   width: 100%;
   height: 100%;
@@ -148,6 +148,24 @@
   font-size: 12px;
 }
 
+.react-flow__nodesselection {
+  z-index: 3;
+  position: absolute;
+  width: 100%;
+  height: 100%;
+  top: 0;
+  left: 0;
+  transform-origin: left top;
+  pointer-events: none;
+
+  &-rect {
+    position: absolute;
+    background: rgba(0, 89, 220, 0.08);
+    border: 1px dotted rgba(0, 89, 220, 0.8);
+    pointer-events: all;
+  }
+}
+
 .react-flow__handle {
   position: absolute;
   width: 10px;
@@ -179,21 +197,3 @@
     transform: translate(0, -50%);
   }
 }
-
-.react-flow__nodesselection {
-  z-index: 3;
-  position: absolute;
-  width: 100%;
-  height: 100%;
-  top: 0;
-  left: 0;
-  transform-origin: left top;
-  pointer-events: none;
-
-  &-rect {
-    position: absolute;
-    background: rgba(0, 89, 220, 0.08);
-    border: 1px dotted rgba(0, 89, 220, 0.8);
-    pointer-events: all;
-  }
-}