[新增] page-section 类

src/assets/scss/app.scss

@@ -21,6 +21,13 @@ $default-border:2px solid $default-border-color;
 $default-margin:0.75rem;
 $default-margin-between:1.5rem;
 
+.page-section{
+  padding: $default-margin-between;
+  border-radius: $default-radius;
+  overflow: hidden;
+  background: white;
+  box-shadow: $default-shadow;
+}
 
 .has-text-primary{
   color:#209cee !important;