diff --git a/styles.css b/styles.css
index 14ae21f..be3285b 100644
--- a/styles.css
+++ b/styles.css
@@ -72,6 +72,9 @@ body {
         max-width: 300px;
     }
 
+    #main-panel {
+        width: calc(100% - 300px);
+    }
 }
 
 #side-panel .conversation {
@@ -105,7 +108,7 @@ body {
     display: flex;
     flex-direction: column;
     justify-content: flex-end;
-    width: calc(100% - 300px);
+    width: 100%;
 }
 
 #page {