fix accessibility

static/css/styles.css

@@ -12,6 +12,7 @@
   position: relative;
   top: 2px;
 }
+
 #menu-toggle:checked + .navbar-menu
 {
     display: block;

templates/meta/master.html

@@ -45,7 +45,7 @@
           </a>
 
           <div class="navbar-item has-dropdown is-hoverable">
-            <a class="navbar-link">
+            <a href="" class="navbar-link">
               Services
             </a>
             <div class="navbar-dropdown">
@@ -58,7 +58,7 @@
             </div>
           </div>
           <div class="navbar-item has-dropdown is-hoverable">
-            <a class="navbar-link">
+            <a href="" class="navbar-link">
               Informations techniques
             </a>
             <div class="navbar-dropdown">
@@ -77,7 +77,7 @@
             </div>
           </div>
           <div class="navbar-item has-dropdown is-hoverable">
-            <a class="navbar-link">
+            <a href="" class="navbar-link">
               À propos
             </a>
             <div class="navbar-dropdown">