fix button padding

style/components/button.less

@@ -64,7 +64,7 @@
       .animation(loadingCircle 1s infinite linear);
       height: 12px;
       line-height: 12px;
-      right: 12px;
+      right: 11px;
       top: 50%;
       margin-top: -6px;
       opacity: 1;
@@ -75,7 +75,7 @@
   &-sm&-loading {
     padding-right: 24px;
     &:after {
-      right: 8px;
+      right: 7px;
     }
   }
 

style/components/dropdown.less

@@ -134,7 +134,7 @@
 
 .@{dropdown-prefix-cls}-button {
   &.ant-btn-group > .ant-btn:last-child:not(:first-child) {
-    padding-right: 8px;
+    padding-right: 7px;
   }
   .anticon-down {
     .iconfont-size-under-12px(10px);

style/mixins/button.less

@@ -245,8 +245,8 @@
 
   .@{btnClassName}:not(:first-child):not(:last-child) {
     border-radius: 0;
-    padding-left: 8px;
+    padding-left: 7px;
-    padding-right: 8px;
+    padding-right: 7px;
   }
 
   > .@{btnClassName}:first-child {
@@ -254,14 +254,14 @@
     &:not(:last-child) {
       border-bottom-right-radius: 0;
       border-top-right-radius: 0;
-      padding-right: 8px;
+      padding-right: 7px;
     }
   }
 
   > .@{btnClassName}:last-child:not(:first-child) {
     border-bottom-left-radius: 0;
     border-top-left-radius: 0;
-    padding-left: 8px;
+    padding-left: 7px;
   }
 
  & > & {
@@ -276,13 +276,13 @@
     > .@{btnClassName}:last-child {
       border-bottom-right-radius: 0;
       border-top-right-radius: 0;
-      padding-right: 8px;
+      padding-right: 7px;
     }
   }
 
  & > &:last-child:not(:first-child) > .@{btnClassName}:first-child {
     border-bottom-left-radius: 0;
     border-top-left-radius: 0;
-    padding-left: 8px;
+    padding-left: 7px;
   }
 }

style/themes/default/custom.less

@@ -69,11 +69,11 @@
 @btn-disable-bg         : #f3f5f7;
 @btn-disable-border     : @border-color-base;
 
-@btn-padding-base       : 4px 15px;
+@btn-padding-base       : 4px 11px;
 @btn-border-radius-base : 6px;
 
 @btn-font-size-lg       : 14px;
-@btn-padding-lg         : 4px 15px 5px 15px;
+@btn-padding-lg         : 4px 11px 5px 11px;
 @btn-border-radius-lg   : @btn-border-radius-base;
 
 @btn-padding-sm         : 1px 7px;