Merge branch 'develop' of https://github.com/visual-heuristics/frontend-js into feat_fetch_problem_file

Author: pippo-sci

src/pages/PageFour/index.js

@@ -90,7 +90,8 @@ class PageFour extends React.Component {
         const previousStageIndex = this.state.blockIndex;
         const previousStage = allStages[previousStageIndex];
         const newStage = allStages[index];
-        const times = 20
+        const times = 20;
+        newStage.sort((itemA, itemB) => itemA.depth - itemB.depth);
         // this.setState({
         //     drawBlocks: [...newStage]
         // });

src/pages/PageFour/index.less

@@ -79,7 +79,7 @@ ul {
 }
 
 .sub_item {
-  height: 30px;
+  //height: 30px;
   text-align: center;
   position: relative;
   cursor: pointer;