diff --git a/components/cascader/style/index.less b/components/cascader/style/index.less
index 7240d8e8e2e9..5de52826eb3e 100644
--- a/components/cascader/style/index.less
+++ b/components/cascader/style/index.less
@@ -13,7 +13,7 @@
     background-color: transparent !important;
     cursor: pointer;
     width: 100%;
-    position: static;
+    position: relative;
   }
 
   &-picker-show-search &-input.@{ant-prefix}-input {
diff --git a/components/input/style/mixin.less b/components/input/style/mixin.less
index 263b6644179a..27e27af7cb04 100644
--- a/components/input/style/mixin.less
+++ b/components/input/style/mixin.less
@@ -263,6 +263,21 @@
     display: block;
     .clearfix;
 
+    &-addon,
+    &-wrap,
+    > .@{inputClass} {
+      &:not(:first-child):not(:last-child) {
+        border-right-width: 1px;
+        border-right-color: transparent;
+        &:hover {
+          .hover();
+        }
+        &:focus {
+          .active();
+        }
+      }
+    }
+
     & > * {
       border-radius: 0;
       border-right-width: 0;
@@ -289,7 +304,14 @@
     & > .@{ant-prefix}-mention-wrapper .@{ant-prefix}-mention-editor,
     & > .@{ant-prefix}-time-picker .@{ant-prefix}-time-picker-input {
       border-radius: 0;
-      border-right-width: 0;
+      border-right-width: 1px;
+      border-right-color: transparent;
+      &:hover {
+        .hover();
+      }
+      &:focus {
+        .active();
+      }
     }
 
     & > *:first-child,
@@ -308,11 +330,22 @@
     & > .@{ant-prefix}-calendar-picker:last-child .@{ant-prefix}-input,
     & > .@{ant-prefix}-select-auto-complete:last-child .@{ant-prefix}-input,
     & > .@{ant-prefix}-cascader-picker:last-child .@{ant-prefix}-input,
+    & > .@{ant-prefix}-cascader-picker-focused:last-child .@{ant-prefix}-input,
     & > .@{ant-prefix}-mention-wrapper:last-child .@{ant-prefix}-mention-editor,
     & > .@{ant-prefix}-time-picker:last-child .@{ant-prefix}-time-picker-input {
       border-top-right-radius: @border-radius-base;
       border-bottom-right-radius: @border-radius-base;
       border-right-width: 1px;
+      border-right-color: @input-border-color;
+      &:hover {
+        .hover();
+      }
+      &:focus {
+        .active();
+        .@{ant-prefix}-cascader-input {
+          .active();
+        }
+      }
     }
   }
 }