Fix select style

style/components/select.less

@@ -33,12 +33,6 @@
   color: #666;
   font-size: @font-size-base;
 
-  ul, li {
-    margin: 0;
-    padding: 0;
-    list-style: none;
-  }
-
   > ul > li > a {
     padding: 0;
     background-color: #fff;
@@ -261,25 +255,68 @@
     }
   }
 
-  .@{select-prefix-cls}-selection--single + .@{select-prefix-cls}-dropdown {
-    .@{select-prefix-cls}-dropdown-menu-item-selected {
+  &-open {
+    .@{select-prefix-cls}-arrow {
+      .ie-rotate(2);
+      -ms-transform: rotate(180deg);
+      &:before {
+        .rotate(180deg);
+      }
+    }
+    .@{select-prefix-cls}-selection {
+      .active();
+    }
+  }
+
+  &-combobox {
+    .@{select-prefix-cls}-arrow {
+      display: none;
+    }
+    .@{select-prefix-cls}-search--inline {
+      height: 100%;
+      float: none;
+    }
+    .@{select-prefix-cls}-search__field__placeholder {
+      left: 10px;
+      cursor: text;
+    }
+    .@{select-prefix-cls}-search__field__wrap {
+      width: 100%;
+      height: 100%;
+    }
+    .@{select-prefix-cls}-search__field {
+      padding: 0 10px;
+      width: 100%;
+      height: 100%;
+      position: relative;
+      z-index: 1;
+    }
+    .@{select-prefix-cls}-selection__rendered {
+      padding: 0;
+      height: 100%;
+    }
+  }
+}
+
+.@{select-prefix-cls}-dropdown {
+
+  &--single &-menu-item-selected {
     background-color: tint(@primary-color, 90%);
     .selected_icon();
   }
-  }
-  .@{select-prefix-cls}-selection--multiple + .@{select-prefix-cls}-dropdown {
-    .@{select-prefix-cls}-dropdown-menu-item {
+
+  &--multiple &-menu-item {
     padding: 7px 33px 7px 16px;
   }
-    .@{select-prefix-cls}-dropdown-menu-item-selected {
+
+  &--multiple &-menu-item-selected {
     .selected_icon();
   }
-  }
 
-  &-dropdown {
   &-hidden {
     display: none;
   }
+
   background-color: white;
   border: 1px solid #d9d9d9;
   box-shadow: @overlay-shadow;
@@ -302,16 +339,11 @@
     max-height: 250px;
     overflow: auto;
 
-      > li {
-        margin: 0;
-        padding: 0;
-      }
-
     &-item-group-list {
       margin: 0;
       padding: 0;
 
-        > li.@{select-prefix-cls}-dropdown-menu-item {
+      > .@{select-prefix-cls}-dropdown-menu-item {
         padding-left: 24px;
       }
     }
@@ -322,7 +354,7 @@
       padding: 8px 16px;
     }
 
-      li&-item {
+    &-item {
       position: relative;
       display: block;
       padding: 7px 16px;
@@ -364,15 +396,14 @@
       }
     }
   }
-  }
 
-  &-dropdown-container-open, &-open {
+  &-container-open, &-open {
     .@{select-prefix-cls}-dropdown {
       display: block;
     }
   }
 
-  &-search--dropdown {
+  .@{select-prefix-cls}-search--dropdown {
     display: block;
     padding: 4px;
     .@{select-prefix-cls}-search__field__placeholder {
@@ -393,45 +424,4 @@
       display: none;
     }
   }
-
-  &-open {
-    .@{select-prefix-cls}-arrow {
-      .ie-rotate(2);
-      -ms-transform: rotate(180deg);
-      &:before {
-        .rotate(180deg);
-      }
-    }
-    .@{select-prefix-cls}-selection {
-      .active();
-    }
-  }
-  &-combobox {
-    .@{select-prefix-cls}-arrow {
-      display: none;
-    }
-    .@{select-prefix-cls}-search--inline {
-      height: 100%;
-      float: none;
-    }
-    .@{select-prefix-cls}-search__field__placeholder {
-      left: 10px;
-      cursor: text;
-    }
-    .@{select-prefix-cls}-search__field__wrap {
-      width: 100%;
-      height: 100%;
-    }
-    .@{select-prefix-cls}-search__field {
-      padding: 0 10px;
-      width: 100%;
-      height: 100%;
-      position: relative;
-      z-index: 1;
-    }
-    .@{select-prefix-cls}-selection__rendered {
-      padding: 0;
-      height: 100%;
-    }
-  }
 }