diff --git a/frame.js b/frame.js
index 18774acc..faf4b4df 100644
--- a/frame.js
+++ b/frame.js
@@ -244,7 +244,7 @@ Volcanos(chat.ONAPPEND, {_init: function(can, meta, list, cb, target, field) {
 					vimer: can.page.ClassList.has(can, can._fields, html.PLUGIN) && can.Conf("_fileline") && can.misc.Search(can, ice.MSG_DEBUG) == ice.TRUE && "查看源码",
 				}, function(key, value) {
 					return (value || value === "") && {view: [[html.ITEM, html.BUTTON, key, mdb.ICONS, "state"]], list: [{icon: icon[key]}], title: can.user.trans(can, key), onclick: function(event) {
-						_can.onaction[value](event, _can, value, _can.sub)
+						var cb = _can.onaction[value]; cb && _can.onaction[value](event, _can, value, _can.sub)
 					}}
 				})
 			); return meta
diff --git a/index.css b/index.css
index c7f114fe..dec2ac0b 100644
--- a/index.css
+++ b/index.css
@@ -316,6 +316,7 @@ div.item.button.insert>span.icon { font-size:28px; line-height:28px; height:var(
 div.item.button.refresh>span.icon { font-size:28px; line-height:28px; height:var(--action-height); }
 body.windows div.item.button.refresh>span.icon { font-size:22px; line-height:30px; }
 fieldset.plugin>div.action>div.item.button._space.icons { margin-left:20px; flex-grow:1; }
+fieldset.plugin>div.action>div.item.button._space.icons:hover { background-color:unset; cursor:unset; }
 div.tabs>span { font-style:italic; }
 div.tabs>span.icon { font-size:var(--icon-font-size); font-style:normal; padding-left:var(--input-padding); visibility:hidden; }
 div.tabs.select>span.icon { visibility:visible; }
@@ -436,7 +437,7 @@ div.output>div.code>div.form>input[type=button][name=confirm] { background-color
 body.en span[lang^=zh] { display:none; } body.zh span[lang^=en] { display:none; }
 /* display */
 fieldset>form.option:not(.hide), fieldset>div.action:not(.hide):not(.flex) { display:contents; } .hide, .hidden { display:none; }
-body:not(.mobile) fieldset.plugin>div.action:not(.hide):not(.flex) { display:flex; }
+/* body:not(.mobile) fieldset.plugin>div.action:not(.hide):not(.flex) { display:flex; overflow-y:hidden; } */
 fieldset.panel>legend, fieldset.panel>div.status { display:none; }
 fieldset.output>legend, fieldset.output>form.option, fieldset.output>div.action:not(.flex), fieldset.output>div.status, fieldset.output>div.item { display:none; }
 div.action, div.output, div.status, div.project, div.content, div.profile, div.display, table.content, table.content td, div.list, div.code, div.story, div.float, fieldset.float { overflow:auto; }