Chat design for homepage

Signed-off-by: Bruno Lesieur <[email protected]>

Author: MachinisteWeb

Diff for: themes/vue/source/css/index.styl

@@ -170,3 +170,16 @@ body
             &:before
                 content "—"
                 color $green
+                
+.gitter-open-chat-button
+    background-color #4fc08d
+    text-transform none
+    -webkit-transition opacity 1s ease
+    -moz-transition opacity 1s ease
+    -ms-transition opacity 1s ease
+    -o-transition opacity 1s ease
+    transition opacity 1s ease
+    opacity 0
+
+    &.is-displayed
+        opacity 1