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docs/blog/blog1/nmaas-101-1.md

@@ -4,7 +4,7 @@ The main objective **[NMaaS 101]** series is to help you to get started with NM
 
 <div style="border: 3px solid gray; border-radius: 5px; padding-left: 20px;">
 
-<h3 style="margin: 0.6em 0 0.4em;">Requirements</h3>
+<h4 style="margin: 0.6em 0 0.4em;">Requirements</h3>
 <li>Having an eduGain account</li> 
 <li> Identified as NMaaS Domain Manager on behalf of your organisation</li>
 <li> If you are not an NREN, have your local NREN endorsement for using NMaaS</li>

docs/blog/blog2/nmaas-101-2.md

@@ -4,7 +4,7 @@ In article [#001](https://docs.nmaas.eu/blog/blog1/nmaas-101-1/#overview) your o
 
 <div style="border: 3px solid gray; border-radius: 5px; padding-left: 20px;">
 
-<h3 style="margin: 0.6em 0 0.4em;">Requirements</h3>
+<h4 style="margin: 0.6em 0 0.4em;">Requirements</h3>
 <li>Use existing or deploy out of band management VLAN dedicated to your equipment</li> 
 <li> Use existing or deploy an OpenVPN client on a separate server or VM</li>
 <li> Knowledge to implement OpenVPN tunnels</li>

docs/blog/blog3/nmaas-101-3.md

@@ -4,7 +4,7 @@ In article [#001](https://docs.nmaas.eu/blog/blog1/nmaas-101-1/#overview) and [#
 
 <div style="border: 3px solid gray; border-radius: 5px; padding-left: 20px;">
 
-<h3 style="margin: 0.6em 0 0.4em;">Requirements</h3>
+<h4 style="margin: 0.6em 0 0.4em;">Requirements</h3>
 <li>Completed #001</li> 
 <li>Completed #002</li>
 <li>Basic knowledge related to configuration management</li>

docs/blog/blog4/nmaas-101-4.md

@@ -4,7 +4,7 @@ In article [#001](https://docs.nmaas.eu/blog/blog1/nmaas-101-1/#overview) and [#
 
 <div style="border: 3px solid gray; border-radius: 5px; padding-left: 20px;">
 
-<h3 style="margin: 0.6em 0 0.4em;">Requirements</h3>
+<h4 style="margin: 0.6em 0 0.4em;">Requirements</h3>
 <li>Completed #001</li> 
 <li>Completed #002</li>
 <li>Basic knowledge related to configuration management</li>