diff --git a/public/dashboard/index.html b/public/dashboard/index.html
index 79af7b3..bcf28e0 100644
--- a/public/dashboard/index.html
+++ b/public/dashboard/index.html
@@ -515,9 +515,6 @@
                 var option4;
 
                 option4 = {
-                    grid:{
-                        bottom:2%
-                    },
                     tooltip:{
                         trigger: 'axis',
                         formatter: function (params) {
@@ -532,6 +529,9 @@
                           return tooltipContent;
                         },
                     },
+                    grid:{
+                        bottom:"2%"
+                    },
                     color: ['#018fff'],
                     lineStyle: {
                         color: '#018fff'