diff --git a/assets/css/highContrast.css b/assets/css/highContrast.css
index 41a1d76..251d74d 100644
--- a/assets/css/highContrast.css
+++ b/assets/css/highContrast.css
@@ -391,7 +391,7 @@
     }
   }
 
-  /* Promotions */
+/* Promotions */
 .promotions {
   max-width: 1000px;
   margin: 0 auto;
@@ -400,19 +400,46 @@
 .promotions img {
   width: 100%;
   height: 150px;
+  display: block;
+  margin-left: auto;
+  margin-right: auto;
   background-size: cover;
+  border-radius: 10px;
+  border-style: dashed;
+  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(255, 255, 255, 0.19);
 }
 .promotions button {
-  margin-top: 5%;
+  margin: 1em 1em 0 1em;
+  background-repeat: no-repeat;
+  height: 125px;
+  width: 125px;
+  background-position: center;
 }
 .controls {
   text-align: center;
 }
+.controls #play {
+  height: 30px;
+  width: 30px;
+  border-radius: 25px;
+  background-repeat: no-repeat;
+  background-position: center;
+}
+.controls #stop {
+  height: 30px;
+  width: 30px;
+  border-radius: 25px;
+  background-repeat: no-repeat;
+  background-position: center;
+}
 /* Responsive layout */
 @media (max-width: 750px) {
+  .promotions button {
+    margin: 0 1em 0 1em;
+  }
   .promotions img {
     width: 100%;
-    height: 50px;
+    height: auto;
   }
 }
   
diff --git a/assets/css/main.css b/assets/css/main.css
index e5fee4c..f3461aa 100644
--- a/assets/css/main.css
+++ b/assets/css/main.css
@@ -435,19 +435,46 @@ main img {
 .promotions img {
   width: 100%;
   height: 150px;
+  display: block;
+  margin-left: auto;
+  margin-right: auto;
   background-size: cover;
+  border-radius: 10px;
+  border-style: dashed;
+  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(255, 255, 255, 0.19);
 }
 .promotions button {
-  margin-top: 5%;
+  margin: 1em 1em 0 1em;
+  background-repeat: no-repeat;
+  height: 125px;
+  width: 125px;
+  background-position: center;
 }
 .controls {
   text-align: center;
 }
+.controls #play {
+  height: 30px;
+  width: 30px;
+  border-radius: 25px;
+  background-repeat: no-repeat;
+  background-position: center;
+}
+.controls #stop {
+  height: 30px;
+  width: 30px;
+  border-radius: 25px;
+  background-repeat: no-repeat;
+  background-position: center;
+}
 /* Responsive layout */
 @media (max-width: 750px) {
+  .promotions button {
+    margin: 0 1em 0 1em;
+  }
   .promotions img {
     width: 100%;
-    height: 50px;
+    height: auto;
   }
 }
 
diff --git a/assets/php/common/formUploadFiles.php b/assets/php/common/formUploadFiles.php
index c2faa2a..4716f20 100644
--- a/assets/php/common/formUploadFiles.php
+++ b/assets/php/common/formUploadFiles.php
@@ -41,7 +41,7 @@ class FormUploadFiles extends Form {
             $archivo = $_FILES['archivo'];
             $nombre = $_FILES['archivo']['name'];
             /* 1.a) Valida el nombre del archivo */
-            $ok = check_file_uploaded_name($nombre) && check_file_uploaded_length($nombre) ;
+            $ok = $this->check_file_uploaded_name($nombre) && $this->check_file_uploaded_length($nombre) ;
             /* 1.b) Sanitiza el nombre del archivo 
             $ok = sanitize_file_uploaded_name($nombre);
             */
@@ -82,7 +82,7 @@ class FormUploadFiles extends Form {
      * @author Yousef Ismaeil Cliprz
      * @See http://php.net/manual/es/function.move-uploaded-file.php#111412
      */
-    function check_file_uploaded_name ($filename) {
+    protected function check_file_uploaded_name ($filename) {
         return (bool) ((mb_ereg_match('/^[0-9A-Z-_\.]+$/i',$filename) === 1) ? true : false );
     }
 
@@ -97,7 +97,7 @@ class FormUploadFiles extends Form {
      * @author Sean Vieira
      * @see http://stackoverflow.com/a/2021729
      */
-    function sanitize_file_uploaded_name($filename) {
+    protected function sanitize_file_uploaded_name($filename) {
         /* Remove anything which isn't a word, whitespace, number
         * or any of the following caracters -_~,;[]().
         * If you don't need to handle multi-byte characters
@@ -118,7 +118,7 @@ class FormUploadFiles extends Form {
      * @author Yousef Ismaeil Cliprz.
      * @See http://php.net/manual/es/function.move-uploaded-file.php#111412
      */
-    function check_file_uploaded_length ($filename) {
+    protected function check_file_uploaded_length ($filename) {
         return (bool) ((mb_strlen($filename,'UTF-8') < 250) ? true : false);
     }
 }
diff --git a/assets/php/config.php b/assets/php/config.php
index 955a06a..a43a20f 100644
--- a/assets/php/config.php
+++ b/assets/php/config.php
@@ -16,8 +16,8 @@
     /**
     * Image files directory.
     */
-    define('FILMS_DIR', dirname(RAIZ_APP).'img/films/tmp');
-    define('FILMS_DIR_PROTECTED', RAIZ_APP.'img/films/tmp');
+    define('FILMS_DIR', dirname(RAIZ_APP).'/img/films/tmp');
+    define('FILMS_DIR_PROTECTED', RAIZ_APP.'/img/films/tmp');
 
     /**
      * Allowed extensions for image files.
diff --git a/assets/php/form.php b/assets/php/form.php
index 1da1a6e..dc8a4f2 100644
--- a/assets/php/form.php
+++ b/assets/php/form.php
@@ -251,7 +251,7 @@ abstract class Form {
         /* <<< Permite definir cadena en múltiples líneas.
          * Revisa https://www.php.net/manual/en/language.types.string.php#language.types.string.syntax.heredoc
          */
-        $htmlForm = "<form method='POST' action='{$this->action}' id='{$this->formId}{$classAtt}{$enctypeAtt}' >
+        $htmlForm = "<form method='POST' action='{$this->action}' id='{$this->formId}'{$classAtt}{$enctypeAtt} >
                         <input type='hidden' name='action' value='{$this->tipoFormulario}' />
                         ".$tokenCSRF.$htmlCamposFormularios."
                     </form>";
diff --git a/index.php b/index.php
index bf3a953..6f9fb74 100644
--- a/index.php
+++ b/index.php
@@ -19,8 +19,8 @@
                     <button id="avanzar">Siguiente</button>
                 </section>
                 <section class="controls">
-                    <button id="play">Play</button>
-                    <button id="stop" disabled>Stop</button>
+                    <button id="play">►</button>
+                    <button id="stop" disabled>||</button>
                 </section>
             </div>
         </section>