JSY-12311 默认文字可以赋值

src/less/resource/app.less

@@ -14,7 +14,6 @@ body {
   top: 0;
   left: 0;
   background-repeat: repeat;
-  .user-select-disable();
   color: @color-bi-text-normal;
   font: normal 12px "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑", Heiti, "黑体", sans-serif;
   -webkit-font-smoothing: antialiased;

src/less/typographic.less

@@ -19,6 +19,7 @@
   overflow-x: hidden;
   overflow-y: hidden;
 }
+
 .overflow-dot() {
   text-overflow: ellipsis;
   overflow-x: hidden;
@@ -36,18 +37,9 @@
 }
 
 .user-select-disable() {
-  -webkit-user-select: none;
+  .user-select(none);
-  -khtml-user-select: none;
-  -moz-user-select: none;
-  -ms-user-select: none;
-  -o-user-select: none;
-  user-select: none;
 }
+
 .user-select-enable() {
-  -webkit-user-select: text;
+  .user-select(auto);
-  -khtml-user-select: text;
-  -moz-user-select: text;
-  -ms-user-select: text;
-  -o-user-select: text;
-  user-select: text;
 }