diff --git a/src/Config.css b/src/Config.css
index 03c1601..733945a 100644
--- a/src/Config.css
+++ b/src/Config.css
@@ -1,6 +1,6 @@
 .config-ui-header {
     text-align: center;
-    top: 0;
+    top: 3em;
     position: sticky;
 }
 
diff --git a/src/Flows.js b/src/Flows.js
index 6aa5667..4d4973e 100644
--- a/src/Flows.js
+++ b/src/Flows.js
@@ -344,7 +344,6 @@ class FlowSidebar extends PureComponent {
                                area_ref={this.reply_ref} on_complete={this.load_replies.bind(this)} /> :
                     <div className="box box-tip flow-item">登录后可以回复树洞</div>
                 }
-                <br />
             </div>
         )
     }
diff --git a/src/Sidebar.css b/src/Sidebar.css
index 6367653..3b1fc15 100644
--- a/src/Sidebar.css
+++ b/src/Sidebar.css
@@ -23,7 +23,6 @@
     top: 0;
     height: 100%;
     width: calc(100% - 700px);
-    padding: 1em;
     background-color: rgba(255,255,255,.7);
     z-index: 21;
     overflow-y: auto;
@@ -35,12 +34,30 @@
 .sidebar-title {
     text-shadow: 0 0 3px white;
     font-weight: bold;
+    position: fixed;
+    width: 100%;
+    top: 0;
+    line-height: 3em;
+    padding-left: .5em;
+    padding-bottom: 1em;
+    margin-bottom: -1em;
+    background-image: linear-gradient(top,rgba(255,255,255,.7) 40%,rgba(255,255,255,0) 100%);
+    pointer-events: none;
+}
+.sidebar-title a {
+    pointer-events: initial;
+}
+
+.sidebar-content {
+    padding: 2em 1em 1em 1em;
 }
 
 @media screen and (max-width: 1300px) {
     .sidebar {
         width: 550px;
-        padding: 1em .5em;
+    }
+    .sidebar-content {
+        padding: 2em .5em 1em .5em;
     }
     .sidebar-on .sidebar {
         left: calc(100% - 550px);
diff --git a/src/Sidebar.js b/src/Sidebar.js
index 9bbf3aa..7732c94 100644
--- a/src/Sidebar.js
+++ b/src/Sidebar.js
@@ -6,11 +6,13 @@ export function Sidebar(props) {
         <div className={props.content ? 'sidebar-on' : ''}>
             <div className="sidebar-shadow" onClick={props.do_close} />
             <div className="sidebar">
-                <p className="sidebar-title">
+                <div className="sidebar-title">
                     <a onClick={props.do_close}>&nbsp;<span className="icon icon-back" />&nbsp;</a>
                     {props.title}
-                </p>
-                {props.content}
+                </div>
+                <div className="sidebar-content">
+                    {props.content}
+                </div>
             </div>
         </div>
     );
diff --git a/src/UserAction.css b/src/UserAction.css
index 620c41b..aca6ff6 100644
--- a/src/UserAction.css
+++ b/src/UserAction.css
@@ -10,7 +10,7 @@
 }
 .reply-sticky {
     position: sticky;
-    bottom: 0;
+    bottom: 1em;
 }
 
 .reply-form textarea {