diff --git a/src/web/content/SimpleTag.php b/src/web/content/SimpleTag.php
index bcb73c5..56e01da 100644
--- a/src/web/content/SimpleTag.php
+++ b/src/web/content/SimpleTag.php
@@ -101,8 +101,10 @@ class SimpleTag implements IContent {
     $parts = ["<{$this->tag}"];
     $this->addAttrs($parts, $attrs);
     $parts[] = ">";
-    A::merge($parts, $children);
-    $parts[] = "</{$this->tag}>";
-    return [c::to_string($parts)];
+    return [c::to_string([
+      implode("", $parts),
+      ...$children,
+      "</{$this->tag}>",
+    ])];
   }
 }
diff --git a/src/web/content/Tag.php b/src/web/content/Tag.php
index 802e28d..dcf09fe 100644
--- a/src/web/content/Tag.php
+++ b/src/web/content/Tag.php
@@ -48,7 +48,7 @@ class Tag extends SimpleTag implements IPrintable {
     $parts = ["<{$this->tag}"];
     $this->addAttrs($parts, $this->attrs);
     $parts[] = ">";
-    return $parts;
+    return [implode("", $parts)];
   }
 
   function getChildren(): array {
diff --git a/src/web/vo.php b/src/web/vo.php
new file mode 100644
index 0000000..7d41655
--- /dev/null
+++ b/src/web/vo.php
@@ -0,0 +1,14 @@
+<?php
+namespace nulib\web;
+
+use nulib\php\content\c;
+use nulib\web\content\v;
+
+/**
+ * Class vo: classe outil pour afficher les tags générés par {@link v}
+ */
+class vo {
+  static function __callStatic($name, $args) {
+    c::write(call_user_func_array([v::class, $name], $args));
+  }
+}
diff --git a/tbin/test-vo.php b/tbin/test-vo.php
new file mode 100644
index 0000000..3533776
--- /dev/null
+++ b/tbin/test-vo.php
@@ -0,0 +1,12 @@
+<?php
+require __DIR__ . "/../vendor/autoload.php";
+
+use nulib\web\content\v;
+use nulib\web\vo;
+
+vo::h1("titre");
+vo::p("paragraph");
+vo::p([
+  "il y a", v::b(4), "lapins.",
+  "allons à la plage",
+]);