diff --git a/src/layouts/navbar/index.vue b/src/layouts/navbar/index.vue
index 74755d1..00d6a37 100644
--- a/src/layouts/navbar/index.vue
+++ b/src/layouts/navbar/index.vue
@@ -27,7 +27,7 @@
 <script>
 import menuTree from '@/components/menuTree'
 import mixins from '@/mixins/article'
-import { mapState, mapMutations, mapGetters } from 'vuex'
+import { mapMutations, mapGetters } from 'vuex'
 export default {
   props: ['isHome', 'isEstate', 'isIasf', 'updateModelType'],
   mixins: [mixins],
diff --git a/src/pages/deviceIntroBeam/index.vue b/src/pages/deviceIntroBeam/index.vue
index f1cbce2..2e82b3c 100644
--- a/src/pages/deviceIntroBeam/index.vue
+++ b/src/pages/deviceIntroBeam/index.vue
@@ -89,15 +89,16 @@ export default {
 <style lang="scss" scoped>
 @import url(../../plugins/wow/animate.css);
 @import '../../styles/page/page.scss';
+$banner-height: 21.6rem;
 .wrap {
     background: url(http://10.10.11.7/images/device/4.png) bottom right/auto no-repeat;
     /deep/ .el-carousel {
-        height: 12.6rem;
+        height: $banner-height;
         .el-carousel__container {
-            height: 12.6rem;
+            height: $banner-height;
         }
         img {
-            height: 12.6rem;
+            height: $banner-height;
         }
     }
 }
diff --git a/src/pages/deviceIntroLayout/index.vue b/src/pages/deviceIntroLayout/index.vue
index 7829e84..2db4fe7 100644
--- a/src/pages/deviceIntroLayout/index.vue
+++ b/src/pages/deviceIntroLayout/index.vue
@@ -88,15 +88,16 @@ export default {
 <style lang="scss" scoped>
 @import url(../../plugins/wow/animate.css);
 @import '../../styles/page/page.scss';
+$banner-height: 21.6rem;
 .wrap {
     background: url(http://10.10.11.7/images/device/4.png) bottom right/auto no-repeat;
     /deep/ .el-carousel {
-        height: 12.6rem;
+        height: $banner-height;
         .el-carousel__container {
-            height: 12.6rem;
+            height: $banner-height;
         }
         img {
-            height: 12.6rem;
+            height: $banner-height;
         }
     }
 }
diff --git a/src/pages/deviceIntroLinear/index.vue b/src/pages/deviceIntroLinear/index.vue
index e6e2815..d5e8f32 100644
--- a/src/pages/deviceIntroLinear/index.vue
+++ b/src/pages/deviceIntroLinear/index.vue
@@ -91,14 +91,15 @@ export default {
 <style lang="scss" scoped>
 @import url(../../plugins/wow/animate.css);
 @import '../../styles/page/page.scss';
+$banner-height: 21.6rem;
 .wrap {
     /deep/ .el-carousel {
-        height: 12.6rem;
+        height: $banner-height;
         .el-carousel__container {
-            height: 12.6rem;
+            height: $banner-height;
         }
         img {
-            height: 12.6rem;
+            height: $banner-height;
         }
     }
 }
diff --git a/src/pages/exp/index.vue b/src/pages/exp/index.vue
index b3d713b..a93a95b 100644
--- a/src/pages/exp/index.vue
+++ b/src/pages/exp/index.vue
@@ -123,14 +123,15 @@ export default {
 <style lang="scss" scoped>
 @import url(../../plugins/wow/animate.css);
 @import '../../styles/page/page.scss';
+$banner-height: 21.6rem;
 .wrap {
     /deep/ .el-carousel {
-        height: 12.6rem;
+        height: $banner-height;
         .el-carousel__container {
-            height: 12.6rem;
+            height: $banner-height;
         }
         img {
-            height: 12.6rem;
+            height: $banner-height;
         }
     }
 }
diff --git a/src/pages/overviewDevHistory/index.vue b/src/pages/overviewDevHistory/index.vue
index 3bddad6..d05d421 100644
--- a/src/pages/overviewDevHistory/index.vue
+++ b/src/pages/overviewDevHistory/index.vue
@@ -45,6 +45,7 @@
                     <p class="date">{{ e.title }}</p>
                     <p class="text">{{ e.des }}</p>
                   </div>
+
                   <img v-if="e.pic"
                        :src="e.pic"
                        alt=""