update

src/views/class/index.vue

@@ -97,5 +97,7 @@ export default {
 .foot {
   height: 90px;
   overflow: hidden;
+  position: relative;
+  z-index: 999;
 }
 </style>

src/views/home/index.vue

@@ -168,5 +168,7 @@ export default {
 .foot {
   height: 90px;
   overflow: hidden;
+  position: relative;
+  z-index: 999;
 }
 </style>

src/views/question/index.vue

@@ -69,5 +69,7 @@ export default {
 .foot {
   height: 90px;
   overflow: hidden;
+  position: relative;
+  z-index: 999;
 }
 </style>

src/views/user/index.vue

@@ -104,5 +104,7 @@ export default {
 .foot {
   height: 90px;
   overflow: hidden;
+  position: relative;
+  z-index: 999;
 }
 </style>