diff --git a/themes/yilia/layout/_partial/mobile-nav.ejs b/themes/yilia/layout/_partial/mobile-nav.ejs
index bc933f4..9ac953e 100644
--- a/themes/yilia/layout/_partial/mobile-nav.ejs
+++ b/themes/yilia/layout/_partial/mobile-nav.ejs
@@ -1,6 +1,5 @@
-<% var defaultBg = '#4d4d4d'; %>
 <nav id="mobile-nav">
-  	<div class="overlay js-overlay" style="background: <%= theme.style && theme.style.header ? theme.style.header : defaultBg %>"></div>
+  	<div class="overlay js-overlay" ></div>
 	<div class="btnctn js-mobile-btnctn">
   		<div class="slider-trigger list" @click="openSlider($event, 'innerArchive')"><i class="icon icon-sort"></i></div>
 	</div>
diff --git a/themes/yilia/source-src/css/mobile-slider.scss b/themes/yilia/source-src/css/mobile-slider.scss
index ea192fd..8077a27 100644
--- a/themes/yilia/source-src/css/mobile-slider.scss
+++ b/themes/yilia/source-src/css/mobile-slider.scss
@@ -20,7 +20,6 @@
 .header-author {
     text-align: center;
     margin: 0.67em 0;
-    font-family: Roboto, "Roboto", serif;
     font-size: 30px;
     -webkit-transition: 0.3s;
     -moz-transition: 0.3s;
diff --git a/themes/yilia/source-src/css/night.scss b/themes/yilia/source-src/css/night.scss
index cdb07a5..6b51cb0 100644
--- a/themes/yilia/source-src/css/night.scss
+++ b/themes/yilia/source-src/css/night.scss
@@ -45,15 +45,15 @@ body.night {
   // 左侧栏
   .left-col {
     background: $articleBg_night;
-    .overlay {
-      background: none;
-    }
-    .profilepic { // 头像
-      filter: brightness(30%);
-    }
   }
-  // 看板娘
-  .waifu {
+  #mobile-nav {
+    background: none;
+  }
+  .overlay {
+    background: none;
+  }
+  // 头像 看板娘
+  .profilepic, .waifu {
     filter: brightness(30%);
   }
   // 评论