IT-101 Changed the classname back to openhw

Signed-off-by: Zhou Fang <zhou.fang@eclipse-foundation.org>
diff --git a/artwork/content/en_index.php b/artwork/content/en_index.php
index c3fb86b..5433fc5 100644
--- a/artwork/content/en_index.php
+++ b/artwork/content/en_index.php
@@ -270,7 +270,7 @@
     </div>
   </div>
   <!-- OpenHW -->
-  <div class="logo-card" id="open-hw">
+  <div class="logo-card" id="openhw">
     <div class="logo-title-container">
       <p class="logo-title">OPEN HW</p>
     </div>