diff --git a/index.html b/index.html
index 682db03..8a8a112 100644
--- a/index.html
+++ b/index.html
@@ -2,6 +2,7 @@
 <html lang="en">
 <head>
 <meta charset="utf-8"/>
+<meta name="viewport" content="width=device-width, initial-scale=1"/>
 <title>Paste</title>
 <style>
 * {
@@ -119,6 +120,34 @@ body {
 .hidden {
   display: none !important;
 }
+@media (max-width: 600px) {
+  #line-numbers {
+    font-size: 12px;
+    min-width: 36px;
+    padding: 10px 6px;
+  }
+  #plaintext {
+    font-size: 12px;
+    padding: 10px;
+  }
+  #nav {
+    padding: 8px;
+    gap: 8px;
+  }
+  .btn {
+    padding: 8px 12px;
+    font-size: 13px;
+  }
+  #url-output {
+    min-width: 0;
+    width: 100%;
+    font-size: 12px;
+  }
+  #status {
+    margin-left: 0;
+    width: 100%;
+  }
+}
 </style>
 <script src="lzma.js"></script>
 </head>
