created burger menu and added responsive styles for navbar, optimized element positions in header
diff --git a/dev/scss/sidebar/sidebar.scss b/dev/scss/sidebar/sidebar.scss
index 9e52ab2..f5542ee 100644
--- a/dev/scss/sidebar/sidebar.scss
+++ b/dev/scss/sidebar/sidebar.scss
@@ -3,12 +3,11 @@
 @import "../util";
 
 aside {
-  display: none;
   background-color: $dark-green;
   color:       $nearly-white;
   width:       $logo-left-distance;
   position:    fixed;
-  // display:     block;
+  display:     block;
   transition:  all .3s ease-in-out;
   outline:     none;
   font-size:   10pt;
@@ -18,6 +17,10 @@
   height:      100%;
   padding-top: 65px;
 
+  &:not(.settings) {
+    display: none;
+  }
+
   > div {
     overflow-y: auto;
     overflow-x: visible;
@@ -152,6 +155,10 @@
       @include input-field;
       width: 100%;
     }
+
+    .login {
+      display: none;
+    }
     
     // search form
     > form > div {