diff --git a/browser/index.html b/browser/index.html
index 2a74a0c13..3e586dbd8 100644
--- a/browser/index.html
+++ b/browser/index.html
@@ -211,7 +211,7 @@
             </li>
             <li>
                 <label><span>Komi:</span>
-                <input type="text" name="komi" placeholder="0" /></label>
+                <input type="number" step="0.5" name="komi" placeholder="0" /></label>
             </li>
             <li>
                 <label><span>Result:</span>
diff --git a/style/index.css b/style/index.css
index 3f19af6bc..fe6a77110 100644
--- a/style/index.css
+++ b/style/index.css
@@ -711,7 +711,7 @@ header, #bar .bar {
         margin: 0;
     }
     #info ul input[name="komi"], #info ul input[name^="size-"] {
-        width: 35px;
+        width: 45px;
     }
     #info span.size-swap {
         padding: 3px;