diff --git a/app/styles/header.css b/app/styles/header.css
index abb1b66..8ecc019 100644
--- a/app/styles/header.css
+++ b/app/styles/header.css
@@ -10,7 +10,6 @@ header {
     box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
     z-index: 1000;
     font-family: var(--font-family);
-    height: 5vh;
 }
 
 header li {
diff --git a/app/styles/history.css b/app/styles/history.css
index 24a5777..2aaa58d 100644
--- a/app/styles/history.css
+++ b/app/styles/history.css
@@ -5,8 +5,8 @@
     overflow: hidden;
     background-color: var(--history-background-color);
     padding: 1em;
-    margin: 1em;
     border-radius: 2em;
+    margin: 1em;
 }
 
 .history {
diff --git a/app/styles/master.css b/app/styles/master.css
index 9223084..4b21879 100644
--- a/app/styles/master.css
+++ b/app/styles/master.css
@@ -11,4 +11,3 @@
 @import './input.css';
 @import './faq.css';
 @import './scrollbar.css';
-@import './responsive.css';
diff --git a/app/styles/responsive.css b/app/styles/responsive.css
deleted file mode 100644
index 533118e..0000000
--- a/app/styles/responsive.css
+++ /dev/null
@@ -1,34 +0,0 @@
-/* responsive.css */
-
-/* Responsive behavior - applies only on smaller screens */
-@media (max-width: 1200px) {
-    /* Left panel as an overlay */
-    .left-panel {
-        margin: 0 auto;
-        min-width: 100vw;
-        max-width: 100vw;
-        padding: 1em;
-    }
-
-    .left-panel.hidden {
-        width: 0; /* Set width to 0 when hidden */
-        visibility: hidden; /* Fully hide the panel */
-        margin: 0;
-        padding: 0;
-        overflow: hidden;
-    }
-
-    header {
-        height: 125px;
-    }
-
-    header li {
-        flex-direction: column;
-        display: block;
-        padding: 2px;
-    }
-
-    body {
-        margin-top: 100px;
-    }
-}