diff --git a/0.9.99/_sources/developer-guides/OPEA_API.rst.txt b/0.9.99/_sources/developer-guides/OPEA_API.rst.txt
index 2d522e3ec..881d1a601 100644
--- a/0.9.99/_sources/developer-guides/OPEA_API.rst.txt
+++ b/0.9.99/_sources/developer-guides/OPEA_API.rst.txt
@@ -16,8 +16,8 @@ This specification is used to define the Restful API of OPEA Mega
 Service for users to access, as long as the input and output definition
 of all OPEA Micro Services for developer to build OPEA Mega service.
 
-..note:: This API Service Specification is a work-in-progress and may be
-  incomplete and contain errors.
+.. note:: This API Service Specification is a work-in-progress and may be
+   incomplete and contain errors.
 
 .. contents:: API Services Table of Contents
    :depth: 2
diff --git a/0.9.99/developer-guides/OPEA_API.html b/0.9.99/developer-guides/OPEA_API.html
index 80d1ef96f..3672c84c4 100644
--- a/0.9.99/developer-guides/OPEA_API.html
+++ b/0.9.99/developer-guides/OPEA_API.html
@@ -2330,10 +2330,11 @@
 <p>This specification is used to define the Restful API of OPEA Mega
 Service for users to access, as long as the input and output definition
 of all OPEA Micro Services for developer to build OPEA Mega service.</p>
-<dl class="simple">
-<dt>..note:: This API Service Specification is a work-in-progress and may be</dt><dd><p>incomplete and contain errors.</p>
-</dd>
-</dl>
+<div class="admonition note">
+<p class="admonition-title">Note</p>
+<p>This API Service Specification is a work-in-progress and may be
+incomplete and contain errors.</p>
+</div>
 <nav class="contents local" id="api-services-table-of-contents">
 <p class="topic-title">API Services Table of Contents</p>
 <ul class="simple">