perf: update buttongroup style

tangjinzhou · tangjinzhou · commit e6367f26cb82 · 2018-07-20T10:25:33.000+08:00
diff --git a/components/button/style/mixin.less b/components/button/style/mixin.less
@@ -271,10 +271,10 @@
   > span:first-child > .@{btnClassName} {
     margin-left: 0;
   }
-  > .@{btnClassName}:first-child:last-child {
+  > .@{btnClassName}:only-child {
     border-radius: @btn-border-radius-base;
   }
-  > span:first-child:last-child > .@{btnClassName} {
+  > span:only-child > .@{btnClassName} {
     border-radius: @btn-border-radius-base;
   }
 
@@ -291,10 +291,10 @@
   }
 
   &-sm {
-    > .@{btnClassName}:first-child:last-child {
+    > .@{btnClassName}:only-child {
       border-radius: @btn-border-radius-sm;
     }
-    > span:first-child:last-child > .@{btnClassName} {
+    > span:only-child > .@{btnClassName} {
       border-radius: @btn-border-radius-sm;
     }
     > .@{btnClassName}:first-child:not(:last-child),

Original file line number	Diff line number	Diff line change
`@@ -271,10 +271,10 @@`
`271`	`271`	`> span:first-child > .@{btnClassName} {`
`272`	`272`	`margin-left: 0;`
`273`	`273`	`}`
`274`		`- > .@{btnClassName}:first-child:last-child {`
	`274`	`+ > .@{btnClassName}:only-child {`
`275`	`275`	`border-radius: @btn-border-radius-base;`
`276`	`276`	`}`
`277`		`- > span:first-child:last-child > .@{btnClassName} {`
	`277`	`+ > span:only-child > .@{btnClassName} {`
`278`	`278`	`border-radius: @btn-border-radius-base;`
`279`	`279`	`}`
`280`	`280`
`@@ -291,10 +291,10 @@`
`291`	`291`	`}`
`292`	`292`
`293`	`293`	`&-sm {`
`294`		`- > .@{btnClassName}:first-child:last-child {`
	`294`	`+ > .@{btnClassName}:only-child {`
`295`	`295`	`border-radius: @btn-border-radius-sm;`
`296`	`296`	`}`
`297`		`- > span:first-child:last-child > .@{btnClassName} {`
	`297`	`+ > span:only-child > .@{btnClassName} {`
`298`	`298`	`border-radius: @btn-border-radius-sm;`
`299`	`299`	`}`
`300`	`300`	`> .@{btnClassName}:first-child:not(:last-child),`