diff --git a/Bootstrap.Admin/Views/Shared/Header.cshtml b/Bootstrap.Admin/Views/Shared/Header.cshtml
index 4eed1ea7..cd5fd106 100644
--- a/Bootstrap.Admin/Views/Shared/Header.cshtml
+++ b/Bootstrap.Admin/Views/Shared/Header.cshtml
@@ -102,7 +102,7 @@
             <span id="userDisplayName" data-userName="@Model.UserName" class="username">@Model.DisplayName</span>
             <b class="caret"></b>
         </a>
-        <ul class="dropdown-menu">
+        <ul class="dropdown-menu dropdown-menu-right">
             <li></li>
             <li><a href="~/Admin/Profiles"><i class=" fa fa-suitcase"></i>个人中心</a></li>
             <li><a href="~/Admin/Index"><i class="fa fa-cog"></i>设置</a></li>
diff --git a/Bootstrap.Admin/wwwroot/css/site.css b/Bootstrap.Admin/wwwroot/css/site.css
index 224be6ea..7507d9db 100644
--- a/Bootstrap.Admin/wwwroot/css/site.css
+++ b/Bootstrap.Admin/wwwroot/css/site.css
@@ -24,6 +24,7 @@ a, a:hover, a:focus {
 .dropdown-menu {
     box-shadow: 0 2px 8px rgba(0, 0, 0, 0.176);
     padding: 0;
+    font-size: 1.4rem;
 }
 
     .dropdown-menu > li > a {
@@ -91,9 +92,7 @@ a, a:hover, a:focus {
 
         .header > .dropdown .dropdown-menu {
             width: 268px;
-            top: 50px;
-            left: auto;
-            right: 0;
+            margin-top: 1rem;
         }
 
             .header > .dropdown .dropdown-menu li {
@@ -120,7 +119,7 @@ a, a:hover, a:focus {
 
                     .header > .dropdown .dropdown-menu li:last-child a {
                         color: #ca3a39;
-                        border-radius: 0 0 3px 3px;
+                        border-radius: 0 0 0.15rem 0.15rem;
                         background: #a9d96c;
                         background-image: linear-gradient(to bottom, #a9d96c 0%, #799e51 100%);
                     }
@@ -134,6 +133,7 @@ a, a:hover, a:focus {
                 .header > .dropdown .dropdown-menu li a {
                     color: #777;
                     padding: 15px 10px;
+                    display: block;
                 }
 
                     .header > .dropdown .dropdown-menu li a:hover {