diff --git a/nezha-fronted/src/components/charts/chart.scss b/nezha-fronted/src/components/charts/chart.scss
index bc8444091..5557de288 100644
--- a/nezha-fronted/src/components/charts/chart.scss
+++ b/nezha-fronted/src/components/charts/chart.scss
@@ -44,6 +44,10 @@
 .legend-option-cell{
   white-space: nowrap;padding: 0px 5px 0px 5px;
 }
+
+.legend-container table tr:hover{
+  background-color: #e6e6e6;
+}
 .nz-icon-warning{
   color:  #e6a23c;
 }
diff --git a/nezha-fronted/src/components/charts/chartPreview.vue b/nezha-fronted/src/components/charts/chartPreview.vue
index 99847411c..531d998e7 100644
--- a/nezha-fronted/src/components/charts/chartPreview.vue
+++ b/nezha-fronted/src/components/charts/chartPreview.vue
@@ -90,7 +90,7 @@
           </template>
           <template v-else>
             <div class="legend-container legend-container-screen" ref="screenLegendArea" @mouseenter="mouseEnterFullChart" @mouseleave="mouseLeaveFullChart" v-show="showLegend" v-scrollBar:legend>
-              <table style="width: 100%">
+              <table style="width: 100%" border="0" cellpadding="0" cellspacing="0">
                 <th style="width: 100%"></th>
                 <template v-for="legendOption in screenLegendOptions">
                   <th v-if="legendOption.value == 'on'" class="option-th legend-option-cell" >
diff --git a/nezha-fronted/src/components/charts/line-chart-block.vue b/nezha-fronted/src/components/charts/line-chart-block.vue
index d8df33629..6e9263996 100644
--- a/nezha-fronted/src/components/charts/line-chart-block.vue
+++ b/nezha-fronted/src/components/charts/line-chart-block.vue
@@ -66,7 +66,7 @@
         </template>
         <template v-else>
           <div class='legend-container'  ref="legendArea" v-show="firstShow" v-scrollBar:legend>
-            <table style="width: 100%">
+            <table style="width: 100%" border="0" cellpadding="0" cellspacing="0">
               <th style="width: 100%"></th>
               <template v-for="legendOption in legendOptions">
                 <th v-if="legendOption.value == 'on'" class="option-th legend-option-cell" >
@@ -146,7 +146,7 @@
           </template>
           <template v-else>
             <div class="legend-container legend-container-screen"  :id="'screenLegendArea'+chartIndex" @mouseenter="mouseEnterFullChart" @mouseleave="mouseLeaveFullChart" v-show="showLegend" v-scrollBar:legend>
-              <table style="width: 100%">
+              <table style="width: 100%" border="0" cellpadding="0" cellspacing="0">
                 <th style="width: 100%"></th>
                 <template v-for="legendOption in screenLegendOptions">
                   <th v-if="legendOption.value == 'on'" class="option-th legend-option-cell" >
diff --git a/nezha-fronted/src/components/page/dashboard/overview/overview2.vue b/nezha-fronted/src/components/page/dashboard/overview/overview2.vue
index 48f2a5f25..837c9bc24 100644
--- a/nezha-fronted/src/components/page/dashboard/overview/overview2.vue
+++ b/nezha-fronted/src/components/page/dashboard/overview/overview2.vue
@@ -793,6 +793,7 @@
                 maxZoom:mapConfig.maxZoom,
                 attributionControl:false,
                 zoomControl:false,
+                maxBounds:L.latLngBounds(L.latLng(-90,-180),L.latLng(90,180))
               }).setView([mapConfig.latitude,mapConfig.longitude],mapConfig.zoom);
               map.createPane("myPane", document.querySelector(".my-pane"));
               map.on("tooltipopen", function(param) {
@@ -805,7 +806,8 @@
               this.map = map;
 
               L.tileLayer(
-                "/static/Tiles/{z}/{x}/{y}.png"
+                "/static/Tiles/{z}/{x}/{y}.png",
+                {noWrap:true}
               ).addTo(map);
 
               let attribution=L.control.attribution({position:'bottomright',prefix:''})