diff --git a/styles/sass/style.scss b/styles/sass/style.scss
index 0048a83..2705cc8 100644
--- a/styles/sass/style.scss
+++ b/styles/sass/style.scss
@@ -22,13 +22,27 @@ body {
   font-size: 1.25em;
 }
 
-#content {
-  width: 100%;
+#content, dialog {
   background: var(--bg);
-  border-radius: 4px;
-  overflow: hidden;
   box-shadow: 0 0 16px rgba(0, 0, 0, 0.125);
+  border: none;
+  border-radius: 4px;
+}
 
+input[type=number] {
+  background: var(--bg);
+  color: var(--fg);
+  border: none;
+  outline: none;
+  font: inherit;
+  text-align: center;
+  width: 4em;
+  appearance: textfield;
+}
+
+#content {
+  width: 100%;
+  overflow: hidden;
   & > div {
     padding: 1em;
   }
diff --git a/templates/index.html.tera b/templates/index.html.tera
index f0eb8c5..46ffbb2 100644
--- a/templates/index.html.tera
+++ b/templates/index.html.tera
@@ -11,9 +11,9 @@
     {% include "modal" %}
     <div id="content">
         <nav>
-            <a><svg class="svg-inline" aria-hidden="true" focusable="false" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 384 512"><path fill="currentColor" d="M41.4 233.4c-12.5 12.5-12.5 32.8 0 45.3l192 192c12.5 12.5 32.8 12.5 45.3 0s12.5-32.8 0-45.3L109.3 256 278.6 86.6c12.5-12.5 12.5-32.8 0-45.3s-32.8-12.5-45.3 0l-192 192z"></path></svg></a>
-            <input type="number">
-            <a><svg class="svg-inline" aria-hidden="true" focusable="false" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 384 512"><path fill="currentColor" d="M342.6 233.4c12.5 12.5 12.5 32.8 0 45.3l-192 192c-12.5 12.5-32.8 12.5-45.3 0s-12.5-32.8 0-45.3L274.7 256 105.4 86.6c-12.5-12.5-12.5-32.8 0-45.3s32.8-12.5 45.3 0l192 192z"></path></svg></a>
+            <a href="/{{ challenge - 1 }}"><svg class="svg-inline" aria-hidden="true" focusable="false" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 384 512"><path fill="currentColor" d="M41.4 233.4c-12.5 12.5-12.5 32.8 0 45.3l192 192c12.5 12.5 32.8 12.5 45.3 0s12.5-32.8 0-45.3L109.3 256 278.6 86.6c12.5-12.5 12.5-32.8 0-45.3s-32.8-12.5-45.3 0l-192 192z"></path></svg></a>
+            <input type="number" min="1" value="{{ challenge }}" autocomplete="false">
+            <a href="/{{ challenge + 1 }}"><svg class="svg-inline" aria-hidden="true" focusable="false" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 384 512"><path fill="currentColor" d="M342.6 233.4c12.5 12.5 12.5 32.8 0 45.3l-192 192c-12.5 12.5-32.8 12.5-45.3 0s-12.5-32.8 0-45.3L274.7 256 105.4 86.6c-12.5-12.5-12.5-32.8 0-45.3s32.8-12.5 45.3 0l192 192z"></path></svg></a>
             {% if content.song %}
             <div>
                 <span>{{ content.song.japanese }}</span>
@@ -37,8 +37,6 @@
         </nav>
         <div>
             <h1>Welcome to Tegaki Tuesday #{{ challenge }}!</h1>
-            <a href="/{{ challenge - 1 }}">Previous</a>
-            <a href="/{{ challenge + 1 }}">Next</a>
             <div lang="ja">
                 <script>
                     let kyujitai = false;