引入我的课程居中

app/views/files/_project_file_new.html.erb

@@ -6,7 +6,7 @@
         showModal('ajax-modal', '513px');
         $('#ajax-modal').siblings().remove();
         $('#ajax-modal').before("<span style='float: right;cursor:pointer;padding-left: 513px;'><a href='javascript:void(0)' onclick='closeModal()'><img src='/images/bid/close.png' width='26px' height='26px' /></a></span>");
-        $('#ajax-modal').parent().css("top","40%").css("left","30%");
+        $('#ajax-modal').parent().css("top","40%").css("left","36%");
         $('#ajax-modal').parent().addClass("popbox_polls");
     }