Adjust Tooltip less variables

components/style/themes/default.less

@@ -144,29 +144,40 @@
 @zindex-tooltip         : 1060;
 
 // Form
-// --------------------------------
-// Legend
+// ---
 @legend-color                : #999;
 @legend-border-color         : @border-color-base;
-// Label
 @label-required-color        : #f50;
 @label-color                 : @text-color;
-// Input
-@input-height-base: 28px;
-@input-height-lg: 32px;
-@input-height-sm: 22px;
+@form-item-margin-bottom     : 24px;
 
+// Input
+// ---
+@input-height-base           : 28px;
+@input-height-lg             : 32px;
+@input-height-sm             : 22px;
 @input-padding-horizontal    : 7px;
 @input-padding-vertical-base : 4px;
 @input-padding-vertical-sm   : 1px;
 @input-padding-vertical-lg   : 6px;
-
 @input-placeholder-color     : #ccc;
 @input-color                 : @text-color;
 @input-border-color          : @border-color-base;
 @input-bg                    : #fff;
-
 @input-hover-border-color    : @primary-color;
 @input-disabled-bg           : @background-color-base;
 
-@form-item-margin-bottom     : 24px;
+// Tooltip
+// ---
+//* Tooltip max width
+@tooltip-max-width: 250px;
+//** Tooltip text color
+@tooltip-color: #fff;
+//** Tooltip background color
+@tooltip-bg: rgba(64, 64, 64, .85);
+//** Tooltip arrow width
+@tooltip-arrow-width: 5px;
+//** Tooltip distance with trigger
+@tooltip-distance: @tooltip-arrow-width - 1 + 4;
+//** Tooltip arrow color
+@tooltip-arrow-color: @tooltip-bg;

components/tooltip/style/index.less

@@ -2,20 +2,6 @@
 @import "../../style/mixins/index";
 
 @tooltip-prefix-cls: ~"@{ant-prefix}-tooltip";
-//** Tooltip max width
-@tooltip-max-width: 250px;
-//** Tooltip text color
-@tooltip-color: #fff;
-//** Tooltip background color
-@tooltip-bg: #373737;
-@tooltip-opacity: 0.9;
-
-//** Tooltip arrow width
-@tooltip-arrow-width: 5px;
-//** Tooltip distance with trigger
-@tooltip-distance: @tooltip-arrow-width - 1 + 4;
-//** Tooltip arrow color
-@tooltip-arrow-color: @tooltip-bg;
 
 // Base class
 .@{tooltip-prefix-cls} {
@@ -23,12 +9,8 @@
   z-index: @zindex-tooltip;
   display: block;
   visibility: visible;
-  // remove left/top by yiminghe
-  // left: -9999px;
-  // top: -9999px;
   font-size: @font-size-base;
   line-height: @line-height-base;
-  opacity: @tooltip-opacity;
 
   &-hidden {
     display: none;