diff --git a/src/views/device-manage/index.vue b/src/views/device-manage/index.vue
index 10f4cb4..60e469a 100644
--- a/src/views/device-manage/index.vue
+++ b/src/views/device-manage/index.vue
@@ -532,9 +532,25 @@ getList()
     width: 450px!important;
   }
 }
-.el-table__cell{
-
+.el-select.serialNumber {
+  border-radius: 6px!important;
+  border: 1px solid #05FEFF!important;
+  background-color: transparent!important;
+  .el-select__wrapper{
+    //height: 53px!important;
+    color: #FFFFFF!important;
+    font-size: 40px!important;
+    height: auto!important;
+    line-height: normal!important;
+  }
+  .el-select__placeholder {
+    height: 54px;
+    line-height: 54px;
+    color: #FFFFFF;
+  }
 }
+
+
 .serialNumber-select.el-popper {
   background: #064B66 !important;
   border: 2px solid #05FEFF !important;
@@ -542,7 +558,9 @@ getList()
 .el-select-dropdown {
     min-width: 130px !important;
   }
-
+  .el-select-dropdown__item.is-hovering{
+    background-color: #064B66 !important;
+  }
   .el-select-dropdown__item {
     color: #FFFFFF;
     border-bottom: 1px solid #05FEFF;