diff --git a/.htaccess b/.htaccess
new file mode 100644
index 0000000..d23e092
--- /dev/null
+++ b/.htaccess
@@ -0,0 +1 @@
+ErrorDocument 404	/404.html
\ No newline at end of file
diff --git a/404.html b/404.html
new file mode 100644
index 0000000..c33d720
--- /dev/null
+++ b/404.html
@@ -0,0 +1,64 @@
+<!-- TODO Add HTML
+TODO Add link to `/` -->
+
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>404</title>
+    <style>
+      * {
+        margin: 0;
+        padding: 0;
+        font-family: system-ui, -apple-system, "Segoe UI", Roboto, Oxygen,
+          Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
+      }
+
+      body {
+        background-color: #212529;
+        color: #dee2e6;
+      }
+
+      #wrapper {
+        display: flex;
+        background-color: #212529 !important;
+        border: 1px #dee2e6 solid;
+        width: 80%;
+        height: 90vh;
+        margin: 5vh auto;
+        justify-content: center;
+        align-items: center;
+        vertical-align: middle;
+        border-radius: 25px;
+      }
+
+      #content {
+        text-align: center;
+      }
+
+      h1 {
+        font-size: 30vh;
+        line-height: 30vh;
+      }
+
+      h2 {
+        margin: 2vh 0;
+      }
+
+      h2,
+      p {
+        color: #a1a8ae;
+      }
+    </style>
+  </head>
+  <body>
+    <div id="wrapper">
+      <div id="content">
+        <h1>404</h1>
+        <h2>Oops! Page not found</h2>
+        <p>Sorry, the page you're looking for doesn't exist.</p>
+      </div>
+    </div>
+  </body>
+</html>
