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docs/cover.md

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+# Cover
+
+Activate the cover feature by setting `coverpage`. The detail in [Configuration#coverpage](zh-cn/configuration#coverpage).
+
+## Basic usage
+
+Set `coverpage` to **true**, and create a `_coverpage.md`. You can see the effect in current website.
+
+
+*index.html*
+
+```html
+<script>
+  window.$docsify = {
+    coverpage: true
+  }
+</script>
+<script src="//unpkg.com/docsify"></script>
+```
+
+*_coverpage.md*
+
+```markdown
+![logo](_media/icon.svg)
+
+# docsify
+
+> A magical documentation site generator.
+
+- Simple and lightweight (~12kb gzipped)
+- Multiple themes
+- Not build static html files
+
+
+[GitHub](https://github.com/QingWei-Li/docsify/)
+[Get Started](#quick-start)
+```
+
+!> A document site can have only one cover page.
+
+## Custom background
+
+The background color is generated randomly by default. You can customize the background color or image.
+
+*_coverpage.md*
+
+```markdown
+# docsify
+
+[GitHub](https://github.com/QingWei-Li/docsify/)
+[Get Started](#quick-start)
+
+<!-- background image -->
+![](_media/bg.png)
+<!-- background color -->
+![color](#f0f0f0)
+```