feat: refactor and adjust ui

src/assets/styles/index.scss

@@ -28,3 +28,4 @@ body {
 }
 
 @import "./layout.scss";
+@import "./page.scss";

src/assets/styles/layout.scss

@@ -27,6 +27,10 @@
       text-align: center;
       box-sizing: border-box;
 
+      img {
+        width: 100%;
+      }
+
       .the-newbtn {
         position: absolute;
         right: 20px;
@@ -54,27 +58,24 @@
     position: relative;
     flex: 1 1 75%;
     height: 100%;
-    display: flex;
-    flex-direction: column;
-    padding: 2px 0;
-    box-sizing: border-box;
 
     .the-bar {
-      flex: 0 0 30px;
-      width: 100%;
-      height: 30px;
-      padding: 0 16px;
+      position: absolute;
+      top: 2px;
+      right: 8px;
+      height: 36px;
       display: flex;
       align-items: center;
-      justify-content: flex-end;
       box-sizing: border-box;
+      z-index: 2;
     }
 
     .the-content {
-      flex: 1 1 100%;
-      overflow: auto;
-      box-sizing: border-box;
-      scrollbar-gutter: stable;
+      position: absolute;
+      left: 0;
+      right: 0;
+      top: 30px;
+      bottom: 10px;
     }
   }
 }

src/assets/styles/page.scss

@@ -0,0 +1,33 @@
+.base-page {
+  width: 100%;
+  height: 100%;
+  display: flex;
+  flex-direction: column;
+
+  > header {
+    flex: 0 0 58px;
+    width: 90%;
+    max-width: 850px;
+    margin: 0 auto;
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+  }
+
+  > section {
+    position: relative;
+    flex: 1 1 100%;
+    width: 100%;
+    height: 100%;
+    overflow: auto;
+    padding: 8px 0;
+    box-sizing: border-box;
+    scrollbar-gutter: stable;
+
+    .base-content {
+      width: 90%;
+      max-width: 850px;
+      margin: 0 auto;
+    }
+  }
+}