no message

src/components/newTravelmanager/travelLineTrip/components/travelDays.vue

 <template>
   <div style="height: 100%;overflow: hidden;" v-if="RenderingOk">
     <!--  -->
-    <div class="UpgradedVersion-box2 UpgradedVersion-homebj relative" style="zoom: 0.44;">
+    <div class="UpgradedVersion-box2 UpgradedVersion-homebj relative" style="zoom: 0.44;"
+    :id="'LineOfTravel'+(item*4)+'_0'+index">
       <div class=" z-index1" style="left: 0;right: 0; top: 0;bottom: 0;">
         <Header :TripColor="dataAll.TripColor" :orderMsg="dataAll"></Header>
         <div class="travelDaysTitlle row-aic">
@@ -140,7 +141,9 @@
       <div class="UpgradedVersion2Line absolute z-index3 row-ajc">
         <span>底线</span>
       </div>
-      <div class="UpgradedVersion2Line absolute z-index3 row-ajc" style="top: 2878px;">
+      <!--  v-if="pageHeight>1839" -->
+      <!-- :style="{'top': pageHeight>2878?'2878px':pageHeight-10+'px'}" -->
+      <div class="UpgradedVersion2Line absolute z-index3 row-ajc" style="top: 2878px">
         <span>底线</span>
       </div>
     </div>
@@ -189,6 +192,7 @@
         },
         imgIndex: null,
         defaultScenicIndex: 0, //当前默认选中的景点
+        pageHeight: 0
       };
     },
     mounted() {},
@@ -361,7 +365,11 @@
               }
             });
           }
+
           this.RenderingOk = true;
+          setTimeout(()=>{
+            this.pageHeight = document.querySelector(`#LineOfTravel${this.item * 4}_0${this.index}`).offsetHeight
+          },500)
         },
         deep: true,
         immediate: true