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 					<input name="tabs" id="tab1" checked="" type="radio">
 					<label for="tab1">Installation</label>
 					<div id="tab-content1" class="tab-content">
-					This page provides all the information needed to setup the PolarSys CHESS tool.
+					This page provides all the information needed to setup the PolarSys CHESS tool.<br />
 					Please refer also to the provided <a href="publis/CHESSToolset_UserGuide.pdf"><b>user guide</b></a> to check the extensions currently available for CHESS.
 
 						<h3>Needed environment</h3>