* fix style of radio input and checkbox input control in IE8-9.

src/less/components/forms.less

@@ -31,8 +31,8 @@ input[type="search"] { .box-sizing(border-box); }
 
 // Position radios and checkboxes better
 input[type="radio"], input[type="checkbox"] {
-  margin: 4px 0 0;
-  margin-top: 1px \9; /* IE8-9 */
+  margin: 5px 0 0;
+  margin-top: 0 \9; /* IE8-9 */
   line-height: normal;
 }