update style of SideNav

browser/main/HomePage/SideNav/RepositorySection.styl

@@ -9,6 +9,8 @@
   cursor pointer
   &:hover
     background-color alpha(white, 0.1)
+    .header-control-button
+      opacity 1
 
 .header-name
   position absolute
@@ -36,6 +38,7 @@
   border-radius 5px
   background-color transparent
   color $nav-inactive-color
+  opacity 0
   &:hover
     color white
     background-color alpha(white, 0.1)
@@ -43,13 +46,19 @@
     color white
     background-color $brand-color
 
+.header-control-button--show
+  @extend .header-control-button
+  opacity 1
+
 .folder
   height 33px
   width 100%
   position relative
   cursor pointer
   &:hover
-    background-color alpha(white 0.1)
+    background-color alpha(white, 0.1)
+    .folder-control
+      opacity 1
 
 .folder-label
   position absolute
@@ -62,6 +71,7 @@
   color white
 
 .folder-control
+  opacity 0
   position absolute
   top 0
   bottom 0

browser/main/HomePage/SideNav/SideNav.styl

@@ -41,9 +41,8 @@
     background-color $brand-color
 
 .repositoryList
-  absolute left right
+  absolute left right bottom
   top 167px
-  bottom 33px
   overflow-y auto
 
 .repositoryList-empty

browser/styles/index.styl

@@ -46,6 +46,12 @@ colorPrimaryButton()
   &:active:hover
     background-color $primary-button-background--active
 
+/**
+* Input
+*/
+
+$disabled-input-background = #DDD
+
 /**
 * Nav
 */