diff --git a/src/main/Program.cs b/src/main/Program.cs
index 31baa3c..ff06973 100644
--- a/src/main/Program.cs
+++ b/src/main/Program.cs
@@ -27,6 +27,8 @@ class Program{
             .SetUseOsDefaultLocation(false)
             .SetUseOsDefaultSize(false)
             .SetChromeless(true)
+            .SetDevToolsEnabled(false)
+            .SetContextMenuEnabled(false)
             .RegisterCustomSchemeHandler("http", (object sender, string scheme, string url, out string contentType) =>{
                 Uri uri = new Uri(url);
                 switch (uri.Host){
diff --git a/src/resources/renderer/assets/css/common.css b/src/resources/renderer/assets/css/common.css
index ceaf9ef..5b5923a 100644
--- a/src/resources/renderer/assets/css/common.css
+++ b/src/resources/renderer/assets/css/common.css
@@ -14,6 +14,7 @@ main {
     right: 0px;
     bottom: 0px;
     overflow: hidden;
+    background-color: #212121;
 }
 
 aside {
@@ -22,6 +23,7 @@ aside {
 }
 
 aside > article.frame {
+    position: fixed;
     width: 100%;
     height: 100%;
     color: #ffffff;