diff --git a/docs/.vuepress/styles/palette.styl b/docs/.vuepress/styles/palette.styl
index 999b1ed03..fee60d342 100755
--- a/docs/.vuepress/styles/palette.styl
+++ b/docs/.vuepress/styles/palette.styl
@@ -20,4 +20,6 @@ $accentColorDark = #30BCD5
 $textColorDark = #ccc
 $bodyBgColorDark = #2d3033
 $sideBgColorDark = #363b40
-$badgeTipColorDark = #023e52
\ No newline at end of file
+$badgeTipColorDark = #023e52
+
+$contentWidth = 900px