CSS - 禁止文字选中
moz-user-select: -moz-none;
-moz-user-select: none;
-o-user-select:none;
-khtml-user-select:none;
-webkit-user-select:none;
-ms-user-select:none;
user-select:none;
moz-user-select: -moz-none;
-moz-user-select: none;
-o-user-select:none;
-khtml-user-select:none;
-webkit-user-select:none;
-ms-user-select:none;
user-select:none;