update challenge style

Author: GIC-de

docs/_sources/challenge.rst.txt

@@ -30,7 +30,7 @@ Happy hunting! 🚀
             color: #000;
         }
         .success {
-            color: green;
+            color: black;
             font-size: 1.2em;
             margin-top: 20px;
         }
@@ -101,7 +101,6 @@ Happy hunting! 🚀
         </div>
     </div>
     <div id="congratulations" class="success" style="display: none;">
-        <br>
         <img src="_images/network_detective.png" alt="Network Detective" style="margin-top:20px; max-width:50%; height:auto;"/>
         <br>
         Elementary, my dear engineer. Hidden in packets, configs, 

docs/challenge.html

@@ -101,7 +101,7 @@ <h1>Challenge<a class="headerlink" href="#challenge" title="Link to this heading
         color: #000;
     }
     .success {
-        color: green;
+        color: black;
         font-size: 1.2em;
         margin-top: 20px;
     }
@@ -172,7 +172,6 @@ <h1>Challenge<a class="headerlink" href="#challenge" title="Link to this heading
     </div>
 </div>
 <div id="congratulations" class="success" style="display: none;">
-    <br>
     <img src="_images/network_detective.png" alt="Network Detective" style="margin-top:20px; max-width:50%; height:auto;"/>
     <br>
     Elementary, my dear engineer. Hidden in packets, configs,

docsrc/sources/challenge.rst

@@ -30,7 +30,7 @@ Happy hunting! 🚀
             color: #000;
         }
         .success {
-            color: green;
+            color: black;
             font-size: 1.2em;
             margin-top: 20px;
         }
@@ -101,7 +101,6 @@ Happy hunting! 🚀
         </div>
     </div>
     <div id="congratulations" class="success" style="display: none;">
-        <br>
         <img src="_images/network_detective.png" alt="Network Detective" style="margin-top:20px; max-width:50%; height:auto;"/>
         <br>
         Elementary, my dear engineer. Hidden in packets, configs,