diff --git a/dve.css b/dve.css
index 5876ad9..27874c9 100644
--- a/dve.css
+++ b/dve.css
@@ -10,6 +10,10 @@ html, body {
   height: 100vh;
   width: 100vw;
 }
+#container[data-count="1"] {
+  grid-template-columns: 1fr;
+  grid-template-rows: 1fr;
+}
 #container[data-count="2"] {
   grid-template-columns: repeat(2, 1fr);
   grid-template-rows: 1fr;
diff --git a/dve.js b/dve.js
index 936bbcb..4c99de8 100644
--- a/dve.js
+++ b/dve.js
@@ -6,7 +6,7 @@ const json_files = [
 
 const center = [50.08804, 14.42076];
 const zoom = 14;
-const mapCounts = [2, 4, 6, 9];
+const mapCounts = [1, 2, 4, 6, 9];
 
 let syncing = false;
 let urlUpdateTimer = null;
@@ -138,7 +138,7 @@ function fillMapCountDropdown(select) {
   mapCounts.forEach(count => {
     const opt = document.createElement("option");
     opt.value = count;
-    opt.textContent = count + (count === 2 || count === 4 ? " mapy" : " map");
+    opt.textContent = count + (count === 1 ? " mapa" : count === 2 || count === 4 ? " mapy" : " map");
     select.appendChild(opt);
   });
 }