diff --git a/_src/_assets/styles/bigchain/_menus.scss b/_src/_assets/styles/bigchain/_menus.scss
index 933a527..71147da 100644
--- a/_src/_assets/styles/bigchain/_menus.scss
+++ b/_src/_assets/styles/bigchain/_menus.scss
@@ -338,33 +338,33 @@
         margin-right: .2rem;
         margin-left: -1.2rem;
     }
+}
 
-    &.sticky {
-        background: rgba(lighten($gray, 30%), .85);
-        backdrop-filter: saturate(200%) blur(10px);
-        box-shadow: 0 2px 6px rgba($gray-dark, .4);
+.menu--sub.sticky {
+    background: rgba(lighten($gray, 30%), .85);
+    backdrop-filter: saturate(200%) blur(10px);
+    box-shadow: 0 2px 6px rgba($gray-dark, .4);
 
-        // fake less padding and smaller menu bar
-        // for performant and smoooth transition
-        transform: translate3d(0, -2rem, 0);
+    // fake less padding and smaller menu bar
+    // for performant and smoooth transition
+    transform: translate3d(0, -2rem, 0);
 
-        .menu__link {
-            @media ($screen-sm) {
-                transform: scale(.85) translate3d(0, .6rem, 0);
-                transform-origin: bottom;
+    .menu__link {
+        @media ($screen-sm) {
+            transform: scale(.85) translate3d(0, .6rem, 0);
+            transform-origin: bottom;
+        }
+
+        &.active {
+            color: $headings-color;
+
+            .number {
+                background: $headings-color;
+                color: $gray;
             }
 
-            &.active {
-                color: $headings-color;
-
-                .number {
-                    background: $headings-color;
-                    color: $gray;
-                }
-
-                &:after {
-                    background: $headings-color;
-                }
+            &:after {
+                background: $headings-color;
             }
         }
     }
diff --git a/_src/_assets/styles/bigchain/_nyan.scss b/_src/_assets/styles/bigchain/_nyan.scss
index b1ec559..b86e8fa 100644
--- a/_src/_assets/styles/bigchain/_nyan.scss
+++ b/_src/_assets/styles/bigchain/_nyan.scss
@@ -1,6 +1,13 @@
 // https://codepen.io/brunorcunha/pen/wikEI
 // highly modified
 
+$red: #f80e1c;
+$orange: #fc9729;
+$yellow: #fffd38;
+$green: #32fa2e;
+$blue: #1998f3;
+$violet: #6d2fee;
+
 .nyan-container {
     position: relative;
     overflow: hidden;
@@ -12,8 +19,7 @@
     width: 34px;
     height: 33px;
     left: 50%;
-
-    background-image: url("data:image/png;base64,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");
+    background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAMwAAAAgCAYAAABepJcLAAACiUlEQVR4nO2Yi23DMAxEvVMW6Ghdwzt1p7Qp4sKhKIkUqVyUXtEHBIlsPZ9J+bN9fG4bIcQGXICQlYALELIScAFCVgIuQMhKwAUIWQnboG27RkmRpQc9wB4mievXHiYaCj3o8QoePomffzcJodCDHq/iYRepTXTZ9c+KTEog9KAH0MMm0pvI2MHhQOhBjwSP7f680vM4xo03TIdC5CzeEcn0KFwqHl4XeqxfH7ex+77/0spDjktvGFVE6dyaSPaJqbqIE+Nxocf69XHefysPOeahYQ7RA7PIqTOjIqFAxCW46aKcmLQCocf0+pA1GvU45jmj/V40jNw42rlekVAgk1wyV/aVPeTYjJV9JAtZp1kePdSG0ZpGFak8UEVF3IE0HuwyXMyF+uYecltZ5Mj68HqMOBR5yFVECnU791JeSoe71xOI4pEVSq1I0R6IPGRdIOtDa+BjzIjH7a/mJn8rGqbWNH8ijhVsRMQciOGVYaZLtXEBHsg8ZA6o+sisU20xOB9bt2G0YCz3hhki5kCe4KJtg/AIraiTzo37SjfJIeJxvaM1bNHAd6oNY74FUd48RESGA6m8EQqFUjnBSA/zQjbBY+jlwxPqI8NDZiw/mxvmQaRzucsQyfDIdJEFivCQY5B5vFt91BaiM2r2ZpHOJS8qkuUx0wXhcfyO9mjegQDrw+uhubQosjffDhmIiLhDAbjQQ7/6orI49jeah4VizpaIZTUYxdMsMz1GXJAe6DzO8yOzmOXRa1bzSdG+t2xr3c5aIJ79vaML2gE9P9qjusMz2ve9g6lt6ynQ1pwZLl6fV3BBO6Dnz9hP5BhcxUvIfwcuQMhKwAUIWQm4ACErARcgZCXgAoSsxDdoVHw2ca8RoAAAAABJRU5ErkJggg==');
 
     // rainbow
     &:before {
@@ -25,11 +31,10 @@
         margin-right: 34px;
         width: 750%;
         height: 18px;
-        background: linear-gradient(to bottom, red 16%, orange 16%, orange 32%, yellow 32%, yellow 48%, green 48%, green 64%, blue 64%, blue 80%, violet 80%);
+        background: linear-gradient(to bottom, $red 16%, $orange 16%, $orange 32%, $yellow 32%, $yellow 48%, $green 48%, $green 64%, $blue 64%, $blue 80%, $violet 80%);
         opacity: .4;
         z-index: -1;
     }
-
     animation: nyan .6s steps(6, end) infinite;
 }
 
@@ -45,6 +50,5 @@
     position: absolute;
     z-index: 1;
     background-size: 100% 100%;
-
-    background-image: url("data:image/gif;base64,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");
+    background-image: url('data:image/gif;base64,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');
 }