diff --git a/src/app/controller/page.php b/src/app/controller/page.php
index 0d0d873..b891592 100644
--- a/src/app/controller/page.php
+++ b/src/app/controller/page.php
@@ -46,9 +46,32 @@ class AppControllerPage
 
   public function renderFormDescription()
   {
+    // Prepare locales
+    $locales = [];
+
+    foreach (Environment::config('locales') as $key => $value)
+    {
+      $locales[$key] = (object)
+      [
+        'key'    => $key,
+        'value'  => $value[0],
+        'active' => false !== stripos($_SERVER['HTTP_ACCEPT_LANGUAGE'], $key) ? true : false,
+      ];
+    }
+
     // Init form
     $form = (object)
     [
+      'locale' => (object)
+      [
+        'error'  => [],
+        'values' => $locales,
+        'attribute' => (object)
+        [
+          'value'       => null,
+          'placeholder' => _('Page content language'),
+        ]
+      ],
       'title' => (object)
       [
         'error' => [],
diff --git a/src/app/view/theme/default/page/form/description.phtml b/src/app/view/theme/default/page/form/description.phtml
index 33df21b..483f6da 100644
--- a/src/app/view/theme/default/page/form/description.phtml
+++ b/src/app/view/theme/default/page/form/description.phtml
@@ -13,6 +13,30 @@
                 <h1><?php echo _('Submit') ?></h1>
               </div>
               <form class="margin-t-8" name="submit" method="post" enctype="multipart/form-data" action="page/form">
+                <div class="margin-b-16">
+                  <label for="locale">
+                    <?php echo _('Content language') ?>
+                  </label>
+                  <sub class="opacity-0 parent-hover-opacity-09"
+                       title="<?php echo $form->locale->attribute->placeholder ?>">
+                    <svg xmlns="http://www.w3.org/2000/svg" width="13" height="13" fill="currentColor" class="bi bi-info-circle-fill" viewBox="0 0 16 16">
+                      <path d="M8 16A8 8 0 1 0 8 0a8 8 0 0 0 0 16zm.93-9.412-1 4.705c-.07.34.029.533.304.533.194 0 .487-.07.686-.246l-.088.416c-.287.346-.92.598-1.465.598-.703 0-1.002-.422-.808-1.319l.738-3.468c.064-.293.006-.399-.287-.47l-.451-.081.082-.381 2.29-.287zM8 5.5a1 1 0 1 1 0-2 1 1 0 0 1 0 2z"/>
+                    </svg>
+                  </sub>
+                  <select class="width-100 margin-t-8" type="text" name="locale" id="locale">
+                    <?php foreach ($form->locale->values as $locale) { ?>
+                    <?php if ($locale->active) { ?>
+                      <option value="<?php echo $locale->key ?>" selected="selected">
+                        <?php echo $locale->value ?>
+                      </option>
+                    <?php } else { ?>
+                      <option value="<?php echo $locale->key ?>">
+                        <?php echo $locale->value ?>
+                      </option>
+                    <?php } ?>
+                    <?php } ?>
+                  </select>
+                </div>
                 <div class="margin-b-16">
                   <label for="title">
                     <?php echo _('Title') ?>
diff --git a/src/config/locales.json b/src/config/locales.json
index 2c49e62..c124d4b 100644
--- a/src/config/locales.json
+++ b/src/config/locales.json
@@ -1,5 +1,5 @@
 {
-  "af_ZA":
+  "af-ZA":
   [
     "Afrikaans",
     "Afrikaans"
@@ -9,77 +9,77 @@
     "العربية",
     "Arabic"
   ],
-  "bg_BG":
+  "bg-BG":
   [
     "Български",
     "Bulgarian"
   ],
-  "ca_AD":
+  "ca-AD":
   [
     "Català",
     "Catalan"
   ],
-  "cs_CZ":
+  "cs-CZ":
   [
     "Čeština",
     "Czech"
   ],
-  "cy_GB":
+  "cy-GB":
   [
     "Cymraeg",
     "Welsh"
   ],
-  "da_DK":
+  "da-DK":
   [
     "Dansk",
     "Danish"
   ],
-  "de_AT":
+  "de-AT":
   [
     "Deutsch (Österreich)",
     "German (Austria)"
   ],
-  "de_CH":
+  "de-CH":
   [
     "Deutsch (Schweiz)",
     "German (Switzerland)"
   ],
-  "de_DE":
+  "de-DE":
   [
     "Deutsch (Deutschland)",
     "German (Germany)"
   ],
-  "el_GR":
+  "el-GR":
   [
     "Ελληνικά",
     "Greek"
   ],
-  "en_GB":
+  "en-GB":
   [
     "English (UK)",
     "English (UK)"
   ],
-  "en_US":
+  "en-US":
   [
     "English (US)",
     "English (US)"
   ],
-  "es_CL":
+  "es-CL":
   [
     "Español (Chile)",
     "Spanish (Chile)"
   ],
-  "es_ES":
+  "es-ES":
   [
     "Español (España)",
     "Spanish (Spain)"
   ],
-  "es_MX":
+  "es-MX":
   [
     "Español (México)",
     "Spanish (Mexico)"
   ],
-  "et_EE":
+  "et-EE":
   [
     "Eesti keel",
     "Estonian"
@@ -89,77 +89,77 @@
     "Euskara",
     "Basque"
   ],
-  "fa_IR":
+  "fa-IR":
   [
     "فارسی",
     "Persian"
   ],
-  "fi_FI":
+  "fi-FI":
   [
     "Suomi",
     "Finnish"
   ],
-  "fr_CA":
+  "fr-CA":
   [
     "Français (Canada)",
     "French (Canada)"
   ],
-  "fr_FR":
+  "fr-FR":
   [
     "Français (France)",
     "French (France)"
   ],
-  "gl_ES":
+  "gl-ES":
   [
     "Galego (Spain)",
     "Galician (Spain)"
   ],
-  "he_IL":
+  "he-IL":
   [
     "עברית",
     "Hebrew"
   ],
-  "hi_IN":
+  "hi-IN":
   [
     "हिंदी",
     "Hindi"
   ],
-  "hr_HR":
+  "hr-HR":
   [
     "Hrvatski",
     "Croatian"
   ],
-  "hu_HU":
+  "hu-HU":
   [
     "Magyar",
     "Hungarian"
   ],
-  "id_ID":
+  "id-ID":
   [
     "Bahasa Indonesia",
     "Indonesian"
   ],
-  "is_IS":
+  "is-IS":
   [
     "Íslenska",
     "Icelandic"
   ],
-  "it_IT":
+  "it-IT":
   [
     "Italiano",
     "Italian"
   ],
-  "ja_JP":
+  "ja-JP":
   [
     "日本語",
     "Japanese"
   ],
-  "km_KH":
+  "km-KH":
   [
     "ភាសាខ្មែរ",
     "Khmer"
   ],
-  "ko_KR":
+  "ko-KR":
   [
     "한국어",
     "Korean"
@@ -169,107 +169,107 @@
     "Latina",
     "Latin"
   ],
-  "lt_LT":
+  "lt-LT":
   [
     "Lietuvių kalba",
     "Lithuanian"
   ],
-  "lv_LV":
+  "lv-LV":
   [
     "Latviešu",
     "Latvian"
   ],
-  "mn_MN":
+  "mn-MN":
   [
     "Монгол",
     "Mongolian"
   ],
-  "nb_NO":
+  "nb-NO":
   [
     "Norsk bokmål",
     "Norwegian (Bokmål)"
   ],
-  "nl_NL":
+  "nl-NL":
   [
     "Nederlands",
     "Dutch"
   ],
-  "nn_NO":
+  "nn-NO":
   [
     "Norsk nynorsk",
     "Norwegian (Nynorsk)"
   ],
-  "pl_PL":
+  "pl-PL":
   [
     "Polski",
     "Polish"
   ],
-  "pt_BR":
+  "pt-BR":
   [
     "Português (Brasil)",
     "Portuguese (Brazil)"
   ],
-  "pt_PT":
+  "pt-PT":
   [
     "Português (Portugal)",
     "Portuguese (Portugal)"
   ],
-  "ro_RO":
+  "ro-RO":
   [
     "Română",
     "Romanian"
   ],
-  "ru_RU":
+  "ru-RU":
   [
     "Русский",
     "Russian"
   ],
-  "sk_SK":
+  "sk-SK":
   [
     "Slovenčina",
     "Slovak"
   ],
-  "sl_SI":
+  "sl-SI":
   [
     "Slovenščina",
     "Slovenian"
   ],
-  "sr_RS":
+  "sr-RS":
   [
     "Српски / Srpski",
     "Serbian"
   ],
-  "sv_SE":
+  "sv-SE":
   [
     "Svenska",
     "Swedish"
   ],
-  "th_TH":
+  "th-TH":
   [
     "ไทย",
     "Thai"
   ],
-  "tr_TR":
+  "tr-TR":
   [
     "Türkçe",
     "Turkish"
   ],
-  "uk_UA":
+  "uk-UA":
   [
     "Українська",
     "Ukrainian"
   ],
-  "vi_VN":
+  "vi-VN":
   [
     "Tiếng Việt",
     "Vietnamese"
   ],
-  "zh_CN":
+  "zh-CN":
   [
     "中文 (中国大陆)",
     "Chinese (PRC)"
   ],
-  "zh_TW":
+  "zh-TW":
   [
     "中文 (台灣)",
     "Chinese (Taiwan)"
diff --git a/src/public/assets/theme/default/css/common.css b/src/public/assets/theme/default/css/common.css
index c5f9fb2..8f07131 100644
--- a/src/public/assets/theme/default/css/common.css
+++ b/src/public/assets/theme/default/css/common.css
@@ -48,6 +48,7 @@ a:active h2 {
 }
 
 input,
+select,
 textarea {
   background: #5d627d;
   color: #ccc;