Update index.html

Author: h6w

index.html

@@ -12,7 +12,7 @@
   <a class="w3-bar-item w3-button" href="https://github.com/phpvirtualbox/phpvirtualbox/issues">Issues</a>
   <a class="w3-bar-item w3-button" href="about.html">About</a>
 </div>
-<div class="w3-main" style="margin-left:200px" id="main">
+<div class="w3-main" id="main">
 
   <div class="w3-teal">
     <button id="openNav" class="w3-button w3-teal w3-xlarge" onclick="w3_open()">&#9776;</button>